Adding upstream version 2.4.1.upstream/2.4.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2892 insertions, 0 deletions

diff --git a/src/bin/admin/tests/mysql_tests.sh.in b/src/bin/admin/tests/mysql_tests.sh.in
new file mode 100644
index 0000000..889ce52
--- /dev/null
+++ b/src/bin/admin/tests/mysql_tests.sh.in
@@ -0,0 +1,2892 @@
+#!/bin/sh
+
+# Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# shellcheck disable=SC1091
+# SC1091: Not following: ... was not specified as input (see shellcheck -x).
+
+# shellcheck disable=SC2154
+# SC2154: ... is referenced but not assigned.
+# Reason: some variables are sourced.
+
+# Exit with error if commands exit with non-zero and if undefined variables are
+# used.
+set -eu
+
+# Include common test library.
+. "@abs_top_builddir@/src/lib/testutils/dhcp_test_lib.sh"
+
+# Include admin utilities
+. "@abs_top_builddir@/src/bin/admin/admin-utils.sh"
+
+# Set path to the production schema scripts
+db_scripts_dir="@abs_top_srcdir@/src/share/database/scripts"
+
+# Set location of the kea-admin.
+kea_admin="@abs_top_builddir@/src/bin/admin/kea-admin"
+
+# Convenience function for running an SQL statement
+# param hdr - text message to prepend to any error
+# param qry - SQL statement to run
+# param exp_value - optional expected value.  This can be used IF the SQL statement
+# generates a single value, such as a SELECT which returns one column for one row.
+# Examples:
+#
+#   qry="insert into lease6 (address, lease_type, subnet_id, state) values ($addr,$ltype,1,0)"
+#   run_statement "#2" "$qry"
+#
+#   qry="select leases from lease6_stat where subnet_id = 1 and lease_type = $ltype and state = 0"
+#   run_statement "#3" "$qry" 1
+run_statement() {
+    hdr="$1";shift
+    qry="$1";shift
+    exp_value="${1-}" # Optional value. If not given, replace with empty string.
+
+    # Execute the statement
+    run_command \
+        mysql_execute "${qry}"
+    # shellcheck disable=SC2153
+    # SC2153: Possible misspelling: ... may not be assigned, but ... is.
+    # Reason for disable: OUTPUT is assigned in run_command.
+    value="${OUTPUT}"
+
+    # Execution should succeed
+    assert_eq 0 "${EXIT_CODE}" "$hdr: SQL=[$qry] failed: (expected status code %d, returned %d)"
+
+    # If there's an expected value, test it
+    if [ "x$exp_value" != "x" ]
+    then
+        assert_str_eq "$exp_value" "$value" "$hdr: SQL=[$qry] wrong: (expected value %s, returned %s)"
+    fi
+}
+
+# Wipe all tables from the DB:
+mysql_wipe() {
+    printf "Wiping whole database %s...\n" "${db_name}"
+
+    run_command \
+        mysql_execute_script "${db_scripts_dir}/mysql/dhcpdb_drop.mysql"
+    assert_eq 0 "${EXIT_CODE}" "mysql-wipe: drop table sql failed, expected %d, returned %d"
+}
+
+mysql_db_init_test() {
+    test_start "mysql.db-init"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Ok, now let's initialize the database
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin db-init mysql failed, expected %d, returned non-zero status code %d"
+
+    # Ok, now let's check if the tables are indeed there.
+    # First table: schema_version. Should have 2 columns: version and minor.
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT version, minor FROM schema_version'
+    assert_eq 0 "${EXIT_CODE}" "schema_version table is missing or broken. (expected status code %d, returned %d)"
+
+    # Second table: lease4
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT address, hwaddr, client_id, valid_lifetime, expire, subnet_id, fqdn_fwd, fqdn_rev, hostname FROM lease4'
+    assert_eq 0 "${EXIT_CODE}" "lease4 table is missing or broken. (expected status code %d, returned %d)"
+
+    # Third table: lease6
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT address, duid, valid_lifetime, expire, subnet_id, pref_lifetime, lease_type, iaid, prefix_len, fqdn_fwd, fqdn_rev, hostname, hwaddr, hwtype, hwaddr_source FROM lease6'
+    assert_eq 0 "${EXIT_CODE}" "lease6 table is missing or broken. (expected status code %d, returned %d)"
+
+    # Fourth table: lease6_types
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT lease_type, name FROM lease6_types'
+    assert_eq 0 "${EXIT_CODE}" "lease6_types table is missing or broken. (expected status code %d, returned %d)"
+
+    # Fifth table: lease_hwaddr_source
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT hwaddr_source, name FROM lease_hwaddr_source'
+    assert_eq 0 "${EXIT_CODE}" "lease_hwaddr_source table is missing or broken. (expected status code %d, returned %d)"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+mysql_db_version_test() {
+    test_start "mysql.db-version"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Do not create any table so db-version will raise an error
+    printf 'Checking db-version error case...\n'
+    run_command \
+        "${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}"
+    assert_eq 1 "${EXIT_CODE}" "schema_version table still exists. (expected %d, exit code %d)"
+
+    # Ok, now let's create a version 1.7
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+'CREATE TABLE schema_version (
+    version INT PRIMARY KEY NOT NULL,
+    minor INT
+);
+INSERT INTO schema_version VALUES (1, 7)'
+    assert_eq 0 "${EXIT_CODE}" "schema_version table cannot be created. (expected %d, exit code %d)"
+
+    run_command \
+        "${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}"
+    version="${OUTPUT}"
+    assert_str_eq "1.7" "${version}" "Expected kea-admin to return %s, returned value was %s"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+mysql_db_version_with_extra_test() {
+    test_start "mysql.db-version_with_extra"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Do not create any table so db-version will raise an error
+    printf 'Checking db-version error case...\n'
+    run_command \
+        "${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}"
+    assert_eq 1 "${EXIT_CODE}" "schema_version table still exists. (expected %d, exit code %d)"
+
+    # Ok, now let's create a version 1.7
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+'CREATE TABLE schema_version (
+    version INT PRIMARY KEY NOT NULL,
+    minor INT
+);
+INSERT INTO schema_version VALUES (1, 7)'
+    assert_eq 0 "${EXIT_CODE}" "schema_version table cannot be created. (expected %d, exit code %d)"
+
+    # Single -x.
+    run_command \
+        "${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -x --protocol=TCP
+    version="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin -x failed. (expected %d, exit code %d)"
+    assert_str_eq "1.7" "${version}" "Expected kea-admin to return %s, returned value was %s"
+
+    # Multiple -x.
+    run_command \
+        "${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" \
+        -x --protocol=TCP -x --hello 2> "@abs_top_builddir@/src/bin/admin/test-data"
+    assert_eq 2 "${EXIT_CODE}" "kea-admin -x -x succeeded. (expected %d, exit code %d)"
+    if ! grep -F "unknown option '--hello'" "@abs_top_builddir@/src/bin/admin/test-data"; then
+        printf 'second parameter --hello was not passed to mysql with -x\n'
+        test_finish 1
+    fi
+    rm -f "@abs_top_builddir@/src/bin/admin/test-data"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+mysql_host_reservation_init_test() {
+    test_start "mysql.host_reservation-init"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Ok, now let's initialize the database
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin db-init mysql failed, expected %d, returned non-zero status code %d"
+
+    # Ok, now let's check if the tables are indeed there.
+    # First table: schema_version. Should have 2 columns: version and minor.
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT version, minor FROM schema_version'
+    assert_eq 0 "${EXIT_CODE}" "schema_version table is missing or broken. (expected status code %d, returned %d)"
+
+    # Second table: hosts
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT host_id, dhcp_identifier, dhcp_identifier_type, dhcp4_subnet_id, dhcp6_subnet_id, ipv4_address, hostname, dhcp4_client_classes, dhcp6_client_classes, dhcp4_next_server, dhcp4_server_hostname, dhcp4_boot_file_name, auth_key FROM hosts'
+    assert_eq 0 "${EXIT_CODE}" "hosts table is missing or broken. (expected status code %d, returned %d)"
+
+    # Third table: ipv6_reservations
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT reservation_id, address, prefix_len, type, dhcp6_iaid, host_id FROM ipv6_reservations'
+    assert_eq 0 "${EXIT_CODE}" "ipv6_reservations table is missing or broken. (expected status code %d, returned %d)"
+
+    # Fourth table: dhcp4_options
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT option_id, code, value, formatted_value, space, persistent, dhcp_client_class, dhcp4_subnet_id, host_id, scope_id FROM dhcp4_options'
+    assert_eq 0 "${EXIT_CODE}" "dhcp4_options table is missing or broken. (expected status code %d, returned %d)"
+
+    # Fifth table: dhcp6_options
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT option_id, code, value, formatted_value, space, persistent, dhcp_client_class, dhcp6_subnet_id, host_id, scope_id FROM dhcp6_options'
+    assert_eq 0 "${EXIT_CODE}" "dhcp6_options table is missing or broken. (expected status code %d, returned %d)"
+
+    # Sixth table: host_identifier_type
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT type, name FROM host_identifier_type'
+    assert_eq 0 "${EXIT_CODE}" "host_identifier_type table is missing or broken. (expected status code %d, returned %d)"
+
+    # Seventh table: dhcp_option_scope
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT scope_id, scope_name FROM dhcp_option_scope'
+    assert_eq 0 "${EXIT_CODE}" "dhcp_option_scope table is missing or broken. (expected status code %d, returned %d)"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Upgrades an existing schema to a target newer version
+# param target_version - desired schema version as "major.minor"
+mysql_upgrade_schema_to_version() {
+    target_version=$1
+
+    upgrade_scripts_dir=${db_scripts_dir}/mysql
+
+    # Check if the scripts directory exists at all.
+    if [ ! -d ${upgrade_scripts_dir} ]; then
+        log_error "Invalid scripts directory: ${upgrade_scripts_dir}"
+        exit 1
+    fi
+
+    # Check if there are any files in it
+    num_files=$(find ${upgrade_scripts_dir} -name 'upgrade*.sh' -type f | wc -l)
+    if [ "${num_files}" -eq 0 ]; then
+        upgrade_scripts_dir=@abs_top_builddir@/src/share/database/scripts/mysql
+
+        # Check if the scripts directory exists at all.
+        if [ ! -d ${upgrade_scripts_dir} ]; then
+            log_error "Invalid scripts directory: ${upgrade_scripts_dir}"
+            exit 1
+        fi
+
+        # Check if there are any files in it
+        num_files=$(find "${upgrade_scripts_dir}" -name 'upgrade*.sh' -type f | wc -l)
+    fi
+
+    if [ "${num_files}" -eq 0 ]; then
+        log_error "No scripts in ${upgrade_scripts_dir}?"
+        exit 1
+    fi
+
+    for script in "${upgrade_scripts_dir}"/upgrade*.sh
+    do
+        version=$(mysql_version)
+        if [ "${version}" = "${target_version}" ]
+        then
+            break
+        fi
+
+        echo "Processing $script file..."
+        "${script}" --user="${db_user}" --password="${db_password}" "${db_name}"
+    done
+
+    echo "Schema upgraded to $version"
+}
+
+mysql_upgrade_12_to_13_test() {
+    # Check the output of colonSeparatedHex().
+    run_command \
+        mysql_execute 'SELECT colonSeparatedHex(HEX(0xF123456789))'
+    assert_eq 0 "${EXIT_CODE}" 'colonSeparatedHex() failed, expected exit code %d, actual %d'
+    assert_str_eq 'f1:23:45:67:89' "${OUTPUT}"
+
+    run_command \
+        mysql_execute 'SELECT colonSeparatedHex("")'
+    assert_eq 0 "${EXIT_CODE}" 'colonSeparatedHex() failed, expected exit code %d, actual %d'
+    assert_str_eq '' "${OUTPUT}"
+
+    run_command \
+        mysql_execute 'SELECT colonSeparatedHex(HEX(0xF))'
+    assert_eq 0 "${EXIT_CODE}" 'colonSeparatedHex() failed, expected exit code %d, actual %d'
+    assert_str_eq '0f' "${OUTPUT}"
+
+    run_command \
+        mysql_execute 'SELECT colonSeparatedHex(HEX(0xF1))'
+    assert_eq 0 "${EXIT_CODE}" 'colonSeparatedHex() failed, expected exit code %d, actual %d'
+    assert_str_eq 'f1' "${OUTPUT}"
+
+    run_command \
+        mysql_execute 'SELECT colonSeparatedHex(HEX(0xF12))'
+    assert_eq 0 "${EXIT_CODE}" 'colonSeparatedHex() failed, expected exit code %d, actual %d'
+    assert_str_eq '0f:12' "${OUTPUT}"
+
+    run_command \
+        mysql_execute 'SELECT colonSeparatedHex(HEX(458753))'
+    assert_eq 0 "${EXIT_CODE}" 'colonSeparatedHex() failed, expected exit code %d, actual %d'
+    assert_str_eq '07:00:01' "${OUTPUT}"
+
+    # Check lease4Dump*().
+    run_command \
+        mysql_execute "INSERT INTO lease4 VALUES(10,20,30,40,(SELECT FROM_UNIXTIME(1678900000)),50,1,1,'one,example,com',0,'{ \"a\": 1, \"b\": 2 }',NULL,NULL,0)"
+    assert_eq 0 "${EXIT_CODE}" 'INSERT INTO lease4 failed, expected exit code %d, actual %d'
+    assert_str_eq '' "${OUTPUT}"
+
+    run_command \
+        mysql_execute "CALL lease4DumpHeader()"
+    assert_eq 0 "${EXIT_CODE}" 'lease4DumpHeader() failed, expected exit code %d, actual %d'
+    assert_str_eq 'address,hwaddr,client_id,valid_lifetime,expire,subnet_id,fqdn_fwd,fqdn_rev,hostname,state,user_context,pool_id' "${OUTPUT}"
+
+    run_command \
+        mysql_execute "CALL lease4DumpData()"
+    assert_eq 0 "${EXIT_CODE}" 'lease4DumpData() failed, expected exit code %d, actual %d'
+    output=$(printf '%s' "${OUTPUT}" | sed 's/\t/,/g')  # turn tabs into commas
+    assert_str_eq '0.0.0.10,32:30,33:30,40,1678900000,50,1,1,one&#x2cexample&#x2ccom,0,{ "a": 1&#x2c "b": 2 },0' "${output}"
+
+    # Check lease6Dump*().
+    run_command \
+        mysql_execute "INSERT INTO lease6 VALUES(inet6_aton('::10'),20,30,(SELECT FROM_UNIXTIME(1678900000)),40,50,1,60,70,1,1,'one,example,com',80,90,16,0,'{ \"a\": 1, \"b\": 2 }',0)"
+    assert_eq 0 "${EXIT_CODE}" 'INSERT INTO lease6 failed, expected exit code %d, actual %d'
+    assert_str_eq '' "${OUTPUT}"
+
+    run_command \
+        mysql_execute "CALL lease6DumpHeader()"
+    assert_eq 0 "${EXIT_CODE}" 'lease6DumpHeader() failed, expected exit code %d, actual %d'
+    assert_str_eq 'address,duid,valid_lifetime,expire,subnet_id,pref_lifetime,lease_type,iaid,prefix_len,fqdn_fwd,fqdn_rev,hostname,hwaddr,state,user_context,hwtype,hwaddr_source,pool_id' "${OUTPUT}"
+
+    run_command \
+        mysql_execute "CALL lease6DumpData()"
+    assert_eq 0 "${EXIT_CODE}" 'lease6DumpData() failed, expected exit code %d, actual %d'
+    output=$(printf '%s' "${OUTPUT}" | sed 's/\t/,/g')  # turn tabs into commas
+    assert_str_eq '::10,32:30,30,1678900000,40,50,1,60,70,1,1,one&#x2cexample&#x2ccom,38:30,0,{ "a": 1&#x2c "b": 2 },90,16,0' "${output}"
+
+    # Check lease4Upload().
+    run_command \
+        mysql_execute "CALL lease4Upload('192.0.0.0','ff0102030405','01ff0102030405',7200,1234567890,1,0,0,'',0,'',0)"
+    assert_eq 0 "${EXIT_CODE}" 'lease4Upload() failed, expected exit code %d, actual %d'
+    assert_str_eq '' "${OUTPUT}"
+
+    # Check lease6Upload().
+    run_command \
+        mysql_execute "CALL lease6Upload('2001:db8::','000100012955cb80ff0102030407',7200,1234567890,1,3600,0,1,128,0,0,'','ff0102030407',0,'',90,16,0)"
+    assert_eq 0 "${EXIT_CODE}" 'lease6Upload() failed, expected exit code %d, actual %d'
+    assert_str_eq '' "${OUTPUT}"
+}
+
+mysql_upgrade_13_to_14_test() {
+    # Check function source code
+    run_command \
+         mysql_execute "select action_statement from information_schema.TRIGGERS where trigger_schema = '${db_name}' and trigger_name = 'dhcp4_shared_network_BDEL'"
+    assert_eq 0 "${EXIT_CODE}" "function func_dhcp4_shared_network_BDEL() broken or missing. (expected status code %d, returned %d)"
+
+    count=$(echo "${OUTPUT}" | grep -Eci 'UPDATE dhcp4_subnet SET shared_network_name = NULL') || true
+    assert_eq 1 "${count}" "function func_dhcp4_shared_network_BDEL() is missing changed line. (expected count %d, returned %d)"
+
+    # Check function source code
+    run_command \
+         mysql_execute "select action_statement from information_schema.TRIGGERS where trigger_schema = '${db_name}' and trigger_name = 'dhcp6_shared_network_BDEL'"
+    assert_eq 0 "${EXIT_CODE}" "function func_dhcp6_shared_network_BDEL() broken or missing. (expected status code %d, returned %d)"
+
+    count=$(echo "${OUTPUT}" | grep -Eci 'UPDATE dhcp6_subnet SET shared_network_name = NULL') || true
+    assert_eq 1 "${count}" "function func_dhcp6_shared_network_BDEL() is missing changed line. (expected count %d, returned %d)"
+
+    # user_context should have been added to dhcp4_client_class
+    qry="select user_context from dhcp4_client_class limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # user_context should have been added to dhcp6_client_class
+    qry="select user_context from dhcp6_client_class limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # -- lease counting tests --
+
+    # Check that @json_supported is NULL by default.
+    query="SELECT @json_supported"
+    run_command \
+        mysql_execute "${query}"
+    assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+    assert_str_eq "NULL" "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+    # Clean up.
+    query="DELETE FROM lease4; DELETE FROM lease6"
+    run_command \
+        mysql_execute "${query}"
+    assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+    assert_str_eq "" "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+    # Populate the lease tables. Also check that @json_supported is NULL at
+    # first, and then it is set after inserting leases.
+    run_command \
+        mysql_execute "
+            SELECT @json_supported;
+            INSERT INTO lease4 (address, subnet_id, state, user_context) VALUES (100,1,0,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            SELECT @json_supported;
+            INSERT INTO lease4 (address, subnet_id, state, user_context) VALUES (101,1,1,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease4 (address, subnet_id, state, user_context) VALUES (102,1,2,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease4 (address, subnet_id, state, user_context) VALUES (103,1,0,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease4 (address, subnet_id, state, user_context) VALUES (104,1,1,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease4 (address, subnet_id, state, user_context) VALUES (105,1,1,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (100,0,1,0,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (101,0,1,1,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (102,0,1,0,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (103,0,1,1,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (104,2,1,0,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (105,2,1,1,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (106,2,1,0,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            INSERT INTO lease6 (address, lease_type, subnet_id, state, user_context) VALUES (107,2,1,1,
+                '{\"ISC\": {\"client-classes\": [\"ALL\", \"KNOWN\", \"bar\", \"foo\"] } }');
+            SELECT @json_supported;
+        "
+    assert_eq 0 "${EXIT_CODE}" 'INSERT INTO leases when upgrading from 13 to 14 failed. expected %d, returned %d'
+    one_line=$(printf '%s' "${OUTPUT}" | tr '\n' ' ')
+    json_supported=$(printf '%s' "${one_line}" | grep -Eo '[0-1]$') || true
+    if test "${json_supported}" != 0 && test "${json_supported}" != 1; then
+        assert_str_eq '[01]' "${json_supported}" "INSERT INTO leases when upgrading from 13 to 14 does not set @json_supported. expected '[01]', returned '${json_supported}'"
+    fi
+    if ! printf '%s' "${one_line}" | grep -E "NULL ${json_supported} ${json_supported}" > /dev/null; then
+        assert_str_eq 'NULL [01] [01]' "${one_line}" "INSERT INTO leases when upgrading from 13 to 14 does not set @json_supported. expected 'NULL [01] [01]', returned '${one_line}'"
+    fi
+
+    for v in 4 6; do
+        # Check that client classes were counted correctly.
+        query="SELECT leases FROM lease${v}_stat_by_client_class WHERE client_class = 'foo' LIMIT 1"
+        run_command \
+            mysql_execute "${query}"
+        assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        if test "${json_supported}" = 1; then
+            assert_str_eq 2 "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        # -- Verify some calls to checkLeaseXLimits(). --
+
+        query="SELECT checkLease${v}Limits('')"
+        run_command \
+            mysql_execute "${query}"
+        # Should fail with ERROR 4037 (HY000): Unexpected end of JSON text in argument 1 to function 'json_extract'
+        assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        query="SELECT checkLease${v}Limits('{}')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        fi
+        assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"client-classes\": [ { \"name\": \"foo\", \"address-limit\": 1 } ] } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq "address limit 1 for client class \"foo\", current lease count 2" "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"subnet\": { \"id\": 1, \"address-limit\": 1 } } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq "address limit 1 for subnet ID 1, current lease count 2" "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"client-classes\": [ { \"name\": \"foo\", \"address-limit\": 2 } ] } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq "address limit 2 for client class \"foo\", current lease count 2" "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"subnet\": { \"id\": 1, \"address-limit\": 2 } } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq "address limit 2 for subnet ID 1, current lease count 2" "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"client-classes\": [ { \"name\": \"foo\", \"address-limit\": 4 } ] } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        fi
+        assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"subnet\": { \"id\": 1, \"address-limit\": 4 } } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        fi
+        assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"client-classes\": [ { \"name\": \"foo\", \"address-limit\": 1 }, { \"name\": \"bar\", \"address-limit\": 1 } ], \"subnet\": { \"id\": 1, \"address-limit\": 1 } } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq "address limit 1 for client class \"foo\", current lease count 2" "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"client-classes\": [ { \"name\": \"foo\", \"address-limit\": 2 }, { \"name\": \"bar\", \"address-limit\": 4 } ], \"subnet\": { \"id\": 1, \"address-limit\": 4 } } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq "address limit 2 for client class \"foo\", current lease count 2" "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"client-classes\": [ { \"name\": \"foo\", \"address-limit\": 4 }, { \"name\": \"bar\", \"address-limit\": 4 } ], \"subnet\": { \"id\": 1, \"address-limit\": 2 } } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq "address limit 2 for subnet ID 1, current lease count 2" "${OUTPUT}" "${query}: expected output %s, returned %s"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        query="SELECT checkLease${v}Limits('{ \"ISC\": { \"limits\": { \"client-classes\": [ { \"name\": \"foo\", \"address-limit\": 4 }, { \"name\": \"bar\", \"address-limit\": 4 } ], \"subnet\": { \"id\": 1, \"address-limit\": 4 } } } }')"
+        run_command \
+            mysql_execute "${query}"
+        if test "${json_supported}" = 1; then
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        else
+            # Should fail with ERROR 1305 (42000) at line 1: FUNCTION keatest.JSON_EXTRACT does not exist
+            assert_eq 1 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        fi
+        assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+    done
+
+    # Check that leases counters cannot go negative.
+    for v in 4 6; do
+        query="SELECT leases FROM lease${v}_stat WHERE subnet_id = 1 AND state = 0 LIMIT 1"
+        run_command \
+            mysql_execute "${query}"
+        assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        assert_str_eq '2' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        # Artificially change the subnet counter from 2 down to 1.
+        query="UPDATE lease${v}_stat SET leases = 1 WHERE subnet_id = 1 AND state = 0"
+        run_command \
+            mysql_execute "${query}"
+        assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        if test "${json_supported}" = 1; then
+            query="SELECT leases FROM lease${v}_stat_by_client_class WHERE client_class = 'foo' LIMIT 1"
+            run_command \
+                mysql_execute "${query}"
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '2' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+            # Artificially change the client class counter from 2 down to 1.
+            query="UPDATE lease${v}_stat_by_client_class SET leases = 1 WHERE client_class = 'foo'"
+            run_command \
+                mysql_execute "${query}"
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+
+        # Clean up.
+        query="DELETE FROM lease${v}"
+        run_command \
+            mysql_execute "${query}"
+        assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        assert_str_eq '' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        # SELECT should finish successfully and the subnet counter should be 0.
+        query="SELECT leases FROM lease${v}_stat WHERE subnet_id = 1 AND state = 0 LIMIT 1"
+        run_command \
+            mysql_execute "${query}"
+        assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+        assert_str_eq '0' "${OUTPUT}" "${query}: expected output %s, returned %s"
+
+        if test "${json_supported}" = 1; then
+            # SELECT should finish successfully and the client class counter should be 0.
+            query="SELECT leases FROM lease${v}_stat_by_client_class WHERE client_class = 'foo' LIMIT 1"
+            run_command \
+                mysql_execute "${query}"
+            assert_eq 0 "${EXIT_CODE}" "${query}: expected %d, returned %d"
+            assert_str_eq '0' "${OUTPUT}" "${query}: expected output %s, returned %s"
+        fi
+    done
+}
+
+mysql_upgrade_14_to_15_test() {
+    # table: dhcp4_options new cancelled column.
+    qry="select cancelled from dhcp4_options"
+    run_statement "dhcp4_options" "$qry"
+
+    # table: dhcp6_options new cancelled column.
+    qry="select cancelled from dhcp6_options"
+    run_statement "dhcp6_options" "$qry"
+
+    # Check if offer_lifetime was added to dhcp4_shared_network table.
+    qry="SELECT offer_lifetime from dhcp4_shared_network limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # Check if offer_lifetime was added to dhcp4_subnet table.
+    qry="SELECT offer_lifetime from dhcp4_subnet limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # Check if offer_lifetime was added to dhcp4_client_class table.
+    qry="SELECT offer_lifetime from dhcp4_client_class limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+}
+
+mysql_upgrade_16_to_17_test() {
+    # Check if allocator was added to dhcp4_shared_network table.
+    qry="SELECT allocator from dhcp4_shared_network limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # Check if allocator was added to dhcp6_shared_network table.
+    qry="SELECT allocator from dhcp6_shared_network limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # Check if pd_allocator was added to dhcp6_shared_network table.
+    qry="SELECT pd_allocator from dhcp6_shared_network limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # Check if allocator was added to dhcp4_subnet table.
+    qry="SELECT allocator from dhcp4_subnet limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # Check if allocator was added to dhcp6_subnet table.
+    qry="SELECT allocator from dhcp6_subnet limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+
+    # Check if pd_allocator was added to dhcp6_subnet table.
+    qry="SELECT pd_allocator from dhcp6_subnet limit 1"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry}. (expected status code %d, returned %d)"
+}
+
+mysql_upgrade_17_to_18_test() {
+    # lease4 client_id should support 255 long strings.
+    qry="insert into lease4 (address, client_id, subnet_id) values (1, '123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345', 1)"
+    run_statement "lease4_255_long_client_id" "$qry"
+
+    # lease4 relay_id should support 255 long strings.
+    qry="insert into lease4 (address, remote_id, subnet_id) values (2, '123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345', 1)"
+    run_statement "lease4_255_long_relay_id" "$qry"
+
+    # lease4 remote_id should support 255 long strings.
+    qry="insert into lease4 (address, remote_id, subnet_id) values (3, '123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345', 1)"
+    run_statement "lease4_255_long_remote_id" "$qry"
+
+    # hosts dhcp_identifier should support 255 long strings.
+    qry="insert into hosts (dhcp_identifier, dhcp_identifier_type) values ('123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345', 0)"
+    run_statement "hosts_255_long_dhcp_identifier" "$qry"
+
+    #lease6 duid should support 130 long strings.
+    qry="insert into lease6 values(inet6_aton('::10'),12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890,30,(SELECT FROM_UNIXTIME(1642000000)),40,50,1,60,70,1,1,'one.example.com',80,90,16,0,NULL,0)"
+    run_statement "lease6_130_long_duid" "$qry"
+
+    #lease4_pool_stat new table.
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT subnet_id, pool_id, state, leases FROM lease4_pool_stat'
+    assert_eq 0 "${EXIT_CODE}" "lease4_pool_stat table is missing or broken. (expected status code %d, returned %d)"
+
+    #lease6_pool_stat new table.
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT subnet_id, pool_id, lease_type, state, leases FROM lease6_pool_stat'
+    assert_eq 0 "${EXIT_CODE}" "lease6_pool_stat table is missing or broken. (expected status code %d, returned %d)"
+
+    #lease6_relay_id new table.
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT extended_info_id, relay_id, lease_addr FROM lease6_relay_id'
+    assert_eq 0 "${EXIT_CODE}" "lease6_relay_id table is missing or broken. (expected status code %d, returned %d)"
+
+    #lease6_remote_id new table.
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT extended_info_id, remote_id, lease_addr FROM lease6_remote_id'
+    assert_eq 0 "${EXIT_CODE}" "lease6_remote_id table is missing or broken. (expected status code %d, returned %d)"
+}
+
+mysql_upgrade_18_to_19_test() {
+    # Verify that lease6 address is binary.  This is sort of overkill as many of
+    # the prior upgrade tests manipulate lease6 records.
+    qry="insert into lease6 values(inet6_aton('3001::99'),'18219',30,(SELECT FROM_UNIXTIME(1642000000)),40,50,1,60,70,1,1,'one.example.com',80,90,16,0,NULL,0)"
+    run_statement "lease6_insert" "$qry"
+
+    qry="select inet6_ntoa(address) from lease6 where duid = '18219';"
+    run_statement "lease6_insert" "$qry" "3001::99"
+
+    # Verify that ipv6_reservations address is binary.
+    qry="\
+    insert into hosts(host_id, dhcp_identifier, dhcp_identifier_type) values (18219, '18219', 1); \
+    insert into ipv6_reservations (address, prefix_len, type, dhcp6_iaid, host_id) \
+        values (inet6_aton('3001::99'), 128, 1, 123, 18219); \
+    select inet6_ntoa(address) from ipv6_reservations where host_id = 18219;"
+
+    run_statement "ipv6_reservations_insert" "$qry" "3001::99"
+}
+
+mysql_upgrade_test() {
+
+    test_start "mysql.upgrade"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Initialize database to schema 1.0.
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+
+    # Sanity check - verify that it reports version 1.0.
+    version=$("${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}")
+    assert_str_eq "1.0" "${version}" "Expected kea-admin to return %s, returned value was %s"
+
+    # Let's upgrade it to the latest version.
+    run_command \
+        "${kea_admin}" db-upgrade mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin db-upgrade mysql failed, expected %d, returned non-zero status code %d\n"
+
+    # Verify that the upgraded schema reports the latest version.
+    version=$("${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}")
+    assert_str_eq "19.0" "${version}" "Expected kea-admin to return %s, returned value was %s"
+
+    # Let's check that the new tables are indeed there.
+
+    #table: lease6 (upgrade 1.0 -> 2.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT hwaddr, hwtype, hwaddr_source FROM lease6'
+    assert_eq 0 "${EXIT_CODE}" "lease6 table not upgraded to 2.0 (expected status code %d, returned %d)"
+
+    #table: lease_hwaddr_source (upgrade 1.0 -> 2.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT hwaddr_source, name FROM lease_hwaddr_source'
+    assert_eq 0 "${EXIT_CODE}" "lease_hwaddr_source table is missing or broken. (expected status code %d, returned %d)"
+
+    #table: hosts (upgrade 2.0 -> 3.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT host_id, dhcp_identifier, dhcp_identifier_type, dhcp4_subnet_id, dhcp6_subnet_id, ipv4_address, hostname, dhcp4_client_classes, dhcp6_client_classes FROM hosts'
+    assert_eq 0 "${EXIT_CODE}" "hosts table is missing or broken. (expected status code %d, returned %d)"
+
+    #table: ipv6_reservations (upgrade 2.0 -> 3.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT reservation_id, address, prefix_len, type, dhcp6_iaid, host_id FROM ipv6_reservations'
+    assert_eq 0 "${EXIT_CODE}" "ipv6_reservations table is missing or broken. (expected status code %d, returned %d)"
+
+    #table: dhcp4_options (upgrade 2.0 -> 3.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT option_id, code, value, formatted_value, space, persistent, dhcp_client_class, dhcp4_subnet_id, host_id FROM dhcp4_options'
+    assert_eq 0 "${EXIT_CODE}" "dhcp4_options table is missing or broken. (expected status code %d, returned %d)"
+
+    #table: dhcp6_options (upgrade 2.0 -> 3.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT option_id, code, value, formatted_value, space, persistent, dhcp_client_class, dhcp6_subnet_id, host_id FROM dhcp6_options'
+    assert_eq 0 "${EXIT_CODE}" "dhcp6_options table is missing or broken. (expected status code %d, returned %d)"
+
+    #table: lease_state table added (upgrade 3.0 -> 4.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT state,name from lease_state'
+    assert_eq 0 "${EXIT_CODE}" "dhcp6_options table is missing or broken. (expected status code %d, returned %d)"
+
+    #table: state column added to lease4 (upgrade 3.0 -> 4.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT state from lease4'
+    assert_eq 0 "${EXIT_CODE}" "lease4 is missing state column. (expected status code %d, returned %d)"
+
+    #table: state column added to lease6 (upgrade 3.0 -> 4.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT state from lease6'
+    assert_eq 0 "${EXIT_CODE}" "lease6 is missing state column. (expected status code %d, returned %d)"
+
+    #table: stored procedures for lease dumps added (upgrade 3.0 -> 4.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'call lease4DumpHeader(); call lease4DumpData(); call lease6DumpHeader(); call lease6DumpHeader()'
+    assert_eq 0 "${EXIT_CODE}" "lease dump stored procedures are missing or broken. (expected status code %d, returned %d)"
+
+    #lease_hardware_source should have row for source = 0 (upgrade 4.0 -> 4.1)
+    qry="select count(hwaddr_source) from lease_hwaddr_source where hwaddr_source = 0 and name='HWADDR_SOURCE_UNKNOWN'"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select from lease_hwaddr_source failed. (expected status code %d, returned %d)"
+    assert_eq 1 "${count}" "lease_hwaddr_source does not contain entry for HWADDR_SOURCE_UNKNOWN. (record count %d, expected %d)"
+
+    # table: stored procedures for lease data dumps were modified (upgrade 4.0 -> 4.1)
+    # verify  lease4DumpData has order by lease address
+    qry="show create procedure lease4DumpData"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "procedure text fetch for lease4DumpData failed. (returned status code %d, expected %d)"
+    count=$(echo "${OUTPUT}" | grep -Eci 'order by [a-z]*[\.]?address') || true
+    assert_eq 1 "${count}" "lease4DumpData is missing order by clause. (expected count %d, returned %d)"
+
+    # verify  lease6DumpData has order by lease address
+    qry="show create procedure lease6DumpData"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "procedure text fetch for lease6DumpData failed. (returned status code %d, expected %d)"
+    count=$(echo "${OUTPUT}" | grep -Eci 'order by [a-z]*[\.]?address') || true
+    assert_eq 1 "${count}" "lease6DumpData doesn't have order by clause. (returned count %d, expected %d)"
+
+    #table: host_identifier_type (upgrade 4.1 -> 5.0)
+    # verify that host_identifier_type table exists.
+    qry="select count(*) from host_identifier_type"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select from host_identifier_type failed. (expected status code %d, returned %d)"
+    assert_eq 5 "${count}" "host_identifier_type does not contain correct number of entries. (expected count %d, returned %d)"
+
+    # verify that foreign key fk_host_identifier_type exists
+    qry="show create table hosts"
+    run_command \
+        mysql_execute "${qry}"
+    count=$(echo "${OUTPUT}" | grep -Fci -m 1 'fk_host_identifier_type') || true
+    assert_eq 0 "${EXIT_CODE}" "show create table hosts failed. (expected status code %d, returned %d)"
+    assert_eq 1 "${count}" "show create table hosts did not return correct number of fk_host_identifier_type instances. (expected %d, returned %d)"
+
+    #table: dhcp_option_scope (upgrade 4.1 -> 5.0)
+    # verify that dhcp_option_scope table exists.
+    qry="select count(*) from dhcp_option_scope"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select from dhcp_option_scope failed. (expected status code %d, returned %d)"
+    # verify that dhcp_option_scope table contains correct number of entries.
+    assert_eq 7 "${count}" "dhcp_option_scope does not contain correct number of entries. (expected %d, returned %d)"
+
+    #table: scope_id columns to dhcp4_options (upgrade 4.1 -> 5.0)
+    # verify that dhcp4_options table includes scope_id
+    qry="select scope_id from dhcp4_options"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select scope_id from dhcp4_options failed. (expected status code %d, returned %d)"
+
+    #table: scope_id columns to dhcp6_options (upgrade 4.1 -> 5.0)
+    # verify that dhcp6_options table includes scope_id
+    qry="select scope_id from dhcp6_options"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select scope_id from dhcp6_options failed. (expected status code %d, returned %d)"
+
+    #table: DHCPv4 fixed field columns (upgrade 4.1 -> 5.0)
+    # verify that hosts table has columns holding values for DHCPv4 fixed fields
+    qry="select dhcp4_next_server, dhcp4_server_hostname, dhcp4_boot_file_name, auth_key from hosts"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select dhcp4_next_server, dhcp4_server_hostname, dhcp4_boot_file_name, auth_key failed. (expected status code %d, returned %d)"
+
+    # verify that dhcp4_subnet_id is unsigned
+    qry="show columns from hosts like 'dhcp4_subnet_id'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show columns from hosts like 'dhcp4_subnet_id' failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci unsigned) || true
+    assert_eq 1 "${count}" "dhcp4_subnet_id is not of unsigned type. (returned count %d, expected %d)"
+
+    # verify that dhcp6_subnet_id is unsigned
+    qry="show columns from hosts like 'dhcp6_subnet_id'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show columns from hosts like 'dhcp6_subnet_id' failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci unsigned) || true
+    assert_eq 1 "${count}" "dhcp6_subnet_id is not of unsigned type. (expected count %d, returned %d)"
+
+    #host_identifier_type should have rows for types 3 and 4 (upgrade 5.0 -> 5.1)
+    qry="select count(*) from host_identifier_type"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select from host_identifier_type failed. (expected status code %d, returned %d)"
+    assert_eq 5 "${count}" "host_identifier_type does not contain correct number of entries. (expected count %d, returned %d)"
+
+    #table: user_context columns to hosts, dhcp4_options and dhcp6_options (upgrade 5.2 -> 6.0)
+    # verify that hosts table includes user_context
+    qry="select user_context from hosts"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select user_context from hosts failed. (expected status code %d, returned %d)"
+
+    # verify that dhcp4_options table includes user_context
+    qry="select user_context from dhcp4_options"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select user_context from dhcp4_options failed. (expected status code %d, returned %d)"
+
+    # verify that dhcp6_options table includes user_context
+    qry="select user_context from dhcp6_options"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select user_context from dhcp6_options failed. (expected status code %d, returned %d)"
+
+    # lease4/6_stats changes are tested separately
+
+    #table: user_context to lease4 and lease6 (upgrade 6.0 -> 7.0)
+    # verify that lease4 table includes user_context
+    qry="select user_context from lease4"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select user_context from lease4 failed. (expected status code %d, returned %d)"
+
+    # verify that lease6 table includes user_context
+    qry="select user_context from lease6"
+    run_command \
+        mysql_execute "${qry}"
+    count="${OUTPUT}"
+    assert_eq 0 "${EXIT_CODE}" "select user_context from lease6 failed. (expected status code %d, returned %d)"
+
+    #table: logs (upgrade 6.0 -> 7.0)
+    run_command \
+        mysql -u"${db_user}" -p"${db_password}" "${db_name}" -e \
+        'SELECT timestamp, address, log FROM logs'
+    assert_eq 0 "${EXIT_CODE}" "logs table is missing or broken. (expected status code %d, returned %d)"
+
+    # table: modification (upgrade 6.0 -> 7.0)
+    qry="select id, modification_type from modification"
+    run_statement "modification"  "$qry"
+
+    # table: modification table should have 3 entries (upgrade 6.0 -> 7.0)
+    qry="select count(*) from modification"
+    run_statement "modification count" "$qry" 3
+
+    # table: dhcp4_server
+    qry="select id, tag, description, modification_ts from dhcp4_server"
+    run_statement "dhcp4_server" "$qry"
+
+    # table: dhcp4_server - check if it contains default entry
+    qry="select count(*) from dhcp4_server"
+    run_statement "dhcp4_server" "$qry" 1
+
+    # table: dhcp4_audit
+    qry="select id, object_type, object_id, modification_type from dhcp4_audit"
+    run_statement "dhcp4_audit" "$qry"
+
+    # table: dhcp4_global_parameter
+    qry="select id, name, value, parameter_type, modification_ts from dhcp4_global_parameter"
+    run_statement "dhcp4_global_parameter" "$qry"
+
+    # table: dhcp4_global_parameter_server
+    qry="select parameter_id, server_id, modification_ts from dhcp4_global_parameter_server"
+    run_statement "dhcp4_global_parameter_server" "$qry"
+
+    # table: dhcp4_option_def
+    qry="select id, code, name, space, type, modification_ts, is_array, encapsulate, record_types, user_context from dhcp4_option_def"
+    run_statement "dhcp4_option_def" "$qry"
+
+    # table: dhcp4_option_def_server
+    qry="select option_def_id, server_id, modification_ts from dhcp4_option_def_server"
+    run_statement "dhcp4_option_def_server" "$qry"
+
+    # table: dhcp4_shared_network
+    qry="select id, name, client_class, interface, match_client_id, modification_ts, rebind_timer, relay, renew_timer, require_client_classes, user_context, valid_lifetime, authoritative, calculate_tee_times, t1_percent, t2_percent, boot_file_name, next_server, server_hostname from dhcp4_shared_network"
+    run_statement "dhcp4_shared_network" "$qry"
+
+    # table: dhcp4_shared_network_server
+    qry="select shared_network_id, server_id, modification_ts from dhcp4_shared_network_server"
+    run_statement "dhcp4_shared_network_server" "$qry"
+
+    # table: dhcp4_subnet
+    qry="select subnet_prefix, 4o6_interface, 4o6_interface_id, 4o6_subnet, boot_file_name, client_class, interface, match_client_id, modification_ts, next_server, rebind_timer, relay, renew_timer, require_client_classes, server_hostname, shared_network_name, subnet_id, user_context, valid_lifetime, authoritative, calculate_tee_times, t1_percent, t2_percent from dhcp4_subnet"
+    run_statement "dhcp4_subnet" "$qry"
+
+    # table: dhcp4_pool
+    qry="select id, start_address, end_address, subnet_id, modification_ts from dhcp4_pool"
+    run_statement "dhcp4_pool" "$qry"
+
+    # table: dhcp4_subnet_server
+    qry="select subnet_id, server_id, modification_ts from dhcp4_subnet_server"
+    run_statement "dhcp4_subnet_server" "$qry"
+
+    # table: dhcp4_options (should include three new columns)
+    qry="select shared_network_name, pool_id, modification_ts from dhcp4_options"
+    run_statement "dhcp4_options" "$qry"
+
+    # table: dhcp4_options_server
+    qry="select option_id, server_id, modification_ts from dhcp4_options_server"
+    run_statement "dhcp4_options_server" "$qry"
+
+    # table: dhcp6_server
+    qry="select id, tag, description, modification_ts from dhcp6_server"
+    run_statement "dhcp6_server" "$qry"
+
+    # table: dhcp6_server - check if it contains default entry
+    qry="select count(*) from dhcp6_server"
+    run_statement "dhcp6_server" "$qry" 1
+
+    # table: dhcp6_audit
+    qry="select id, object_type, object_id, modification_type from dhcp6_audit"
+    run_statement "dhcp6_audit" "$qry"
+
+    # table: dhcp6_global_parameter
+    qry="select id, name, value, parameter_type, modification_ts from dhcp6_global_parameter"
+    run_statement "dhcp6_global_parameter" "$qry"
+
+    # table: dhcp6_global_parameter_server
+    qry="select parameter_id, server_id, modification_ts from dhcp6_global_parameter_server"
+    run_statement "dhcp6_global_parameter_server" "$qry"
+
+    # table: dhcp6_option_def
+    qry="select id, code, name, space, type, modification_ts, is_array, encapsulate, record_types, user_context from dhcp6_option_def"
+    run_statement "dhcp6_option_def" "$qry"
+
+    # table: dhcp6_option_def_server
+    qry="select option_def_id, server_id, modification_ts from dhcp6_option_def_server"
+    run_statement "dhcp6_option_def_server" "$qry"
+
+    # table: dhcp6_shared_network
+    qry="select id, name, client_class, interface, modification_ts, preferred_lifetime, rapid_commit, rebind_timer, relay, renew_timer, require_client_classes, user_context, valid_lifetime, calculate_tee_times, t1_percent, t2_percent, interface_id from dhcp6_shared_network"
+    run_statement "dhcp6_shared_network" "$qry"
+
+    # table: dhcp6_shared_network_server
+    qry="select shared_network_id, server_id, modification_ts from dhcp6_shared_network_server"
+    run_statement "dhcp6_shared_network" "$qry"
+
+    # table: dhcp6_subnet
+    qry="select subnet_prefix, client_class, interface, modification_ts, preferred_lifetime, rapid_commit, rebind_timer, relay, renew_timer, require_client_classes, shared_network_name, subnet_id, user_context, valid_lifetime, calculate_tee_times, t1_percent, t2_percent, interface_id from dhcp6_subnet"
+    run_statement "dhcp6_subnet" "$qry"
+
+    # table: dhcp6_subnet_server
+    qry="select subnet_id, server_id, modification_ts from dhcp6_subnet_server"
+    run_statement "dhcp6_subnet_server" "$qry"
+
+    # table: dhcp6_pd_pool
+    qry="select id, prefix_length, delegated_prefix_length, subnet_id, modification_ts from dhcp6_pd_pool"
+    run_statement "dhcp6_pd_pool" "$qry"
+
+    # table: dhcp6_pool
+    qry="select id, start_address, end_address, subnet_id, modification_ts from dhcp6_pool"
+    run_statement "dhcp6_pool" "$qry"
+
+    # table: dhcp6_options (should include four new columns)
+    qry="select shared_network_name, pool_id, pd_pool_id, modification_ts from dhcp6_options"
+    run_statement "dhcp6_options" "$qry"
+
+    # table: dhcp6_options_server
+    qry="select option_id, server_id, modification_ts from dhcp6_options_server"
+    run_statement "dhcp6_options_server" "$qry"
+
+    # Schema upgrade from 7.0 to 8.0
+
+    # Test that createAuditRevisionDHCP4 exists and creates entry in
+    # the dhcp4_audit_revision table.
+    qry="CALL createAuditRevisionDHCP4('2019-01-28 23:59:11', 'all', 'some log message', 0)"
+    run_statement "createAuditRevisionDHCP4" "$qry"
+
+    qry="SELECT COUNT(*) from dhcp4_audit_revision"
+    run_statement "dhcp4_audit_revision count" "$qry" 1
+
+    qry="SELECT id, modification_ts, server_id, log_message FROM dhcp4_audit_revision"
+    run_statement "dhcp4_audit_revision" "$qry"
+
+    # Test that createAuditEntryDHCP4 exists and creates entry in
+    # the dhcp4_audit table.
+    qry="SET @audit_revision_id = (SELECT id FROM dhcp4_audit_revision LIMIT 1); CALL createAuditEntryDHCP4('dhcp4_subnet', 1, 'create')"
+    run_statement "createAuditEntryDHCP4" "$qry"
+
+    qry="SELECT COUNT(*) FROM dhcp4_audit"
+    run_statement "dhcp4_audit count" "$qry" 1
+
+    qry="SELECT id, object_type, object_id, modification_type, revision_id FROM dhcp4_audit"
+    run_statement "dhcp4_audit" "$qry"
+
+    # Test that createOptionAuditDHCP4 exists can create an audit
+    # entry.
+
+    # First set the cascade_transaction session variable to check that
+    # the procedure won't create the audit entry for the option when
+    # this flag is set.
+    qry="SET @audit_revision_id = (SELECT id FROM dhcp4_audit_revision LIMIT 1); SET @cascade_transaction = 1; CALL createOptionAuditDHCP4('create', 0, 1024, NULL, NULL, NULL, NULL, now())"
+    run_statement "createOptionAuditDHCP4 cascade update" "$qry"
+
+    # The number of rows matching the audit entry should be 0.
+    qry="SELECT COUNT(*) FROM dhcp4_audit WHERE object_type = 'dhcp4_options' AND object_id = 1024"
+    run_statement "createOptionAuditDHCP4 cascade update, entry not inserted" "$qry" 0;
+
+    # This time set the cascade_update to 0 and expect that the
+    # audit entry will be created for the option.
+    qry="SET @audit_revision_id = (SELECT id FROM dhcp4_audit_revision LIMIT 1); SET @cascade_transaction = 0; CALL createOptionAuditDHCP4('create', 0, 1024, NULL, NULL, NULL, NULL, now())"
+    run_statement "createOptionAuditDHCP4 cascade update" "$qry"
+
+    qry="SELECT COUNT(*) FROM dhcp4_audit WHERE object_type = 'dhcp4_options' AND object_id = 1024"
+    run_statement "createOptionAuditDHCP4 cascade update, entry not inserted" "$qry" 1;
+
+    # Test that createAuditRevisionDHCP6 exists and creates entry in
+    # the dhcp6_audit_revision table.
+    qry="CALL createAuditRevisionDHCP6('2019-01-28 23:59:11', 'all', 'some log message', 0)"
+    run_statement "createAuditRevisionDHCP6" "$qry"
+
+    qry="SELECT COUNT(*) from dhcp6_audit_revision"
+    run_statement "dhcp6_audit_revision count" "$qry" 1
+
+    qry="SELECT id, modification_ts, server_id, log_message FROM dhcp6_audit_revision"
+    run_statement "dhcp6_audit_revision" "$qry"
+
+    # Test that createAuditEntryDHCP6 exists and creates entry in
+    # the dhcp6_audit table.
+    qry="SET @audit_revision_id = (SELECT id FROM dhcp6_audit_revision LIMIT 1); CALL createAuditEntryDHCP6('dhcp6_subnet', 1, 'create')"
+    run_statement "createAuditEntryDHCP6" "$qry"
+
+    qry="SELECT COUNT(*) FROM dhcp6_audit"
+    run_statement "dhcp6_audit count" "$qry" 1
+
+    qry="SELECT id, object_type, object_id, modification_type, revision_id FROM dhcp6_audit"
+    run_statement "dhcp6_audit" "$qry"
+
+    # Test that createOptionAuditDHCP6 exists can create an audit
+    # entry.
+
+    # First set the cascade_transaction session variable to check that
+    # the procedure won't create the audit entry for the option when
+    # this flag is set.
+    qry="SET @audit_revision_id = (SELECT id FROM dhcp6_audit_revision LIMIT 1); SET @cascade_transaction = 1; CALL createOptionAuditDHCP6('create', 0, 1024, NULL, NULL, NULL, NULL, NULL, now())"
+    run_statement "createOptionAuditDHCP6 cascade update" "$qry"
+
+    # The number of rows matching the audit entry should be 0.
+    qry="SELECT COUNT(*) FROM dhcp6_audit WHERE object_type = 'dhcp6_options' AND object_id = 1024"
+    run_statement "createOptionAuditDHCP6 cascade update, entry not inserted" "$qry" 0;
+
+    # This time set the cascade_update to 0 and expect that the
+    # audit entry will be created for the option.
+    qry="SET @audit_revision_id = (SELECT id FROM dhcp6_audit_revision LIMIT 1); SET @cascade_transaction = 0; CALL createOptionAuditDHCP6('create', 0, 1024, NULL, NULL, NULL, NULL, NULL,now())"
+    run_statement "createOptionAuditDHCP6 cascade update" "$qry"
+
+    qry="SELECT COUNT(*) FROM dhcp6_audit WHERE object_type = 'dhcp6_options' AND object_id = 1024"
+    run_statement "createOptionAuditDHCP6 cascade update, entry not inserted" "$qry" 1;
+
+    # New triggers aren't tested here because the extensive tests are
+    # provided with the backend implementations.
+
+    # parameter_data_type must exist and must have 4 rows.
+    qry="SELECT COUNT(*) FROM parameter_data_type"
+    run_statement "parameter_data_type count" "$qry" 4;
+
+    # Schema upgrade from 8.0 to 8.2
+
+    # New lifetime bounds.
+
+    # table: dhcp4_shared_network
+    qry="select id, name, client_class, interface, match_client_id, modification_ts, rebind_timer, relay, renew_timer, require_client_classes, user_context, valid_lifetime, min_valid_lifetime, max_valid_lifetime, authoritative, calculate_tee_times, t1_percent, t2_percent, boot_file_name, next_server, server_hostname from dhcp4_shared_network"
+    run_statement "dhcp4_shared_network" "$qry"
+
+    # table: dhcp4_subnet
+    qry="select subnet_prefix, 4o6_interface, 4o6_interface_id, 4o6_subnet, boot_file_name, client_class, interface, match_client_id, modification_ts, next_server, rebind_timer, relay, renew_timer, require_client_classes, server_hostname, shared_network_name, subnet_id, user_context, valid_lifetime, min_valid_lifetime, max_valid_lifetime, authoritative, calculate_tee_times, t1_percent, t2_percent from dhcp4_subnet"
+    run_statement "dhcp4_subnet" "$qry"
+
+    # table: dhcp6_shared_network
+    qry="select id, name, client_class, interface, modification_ts, preferred_lifetime, min_preferred_lifetime, max_preferred_lifetime,rapid_commit, rebind_timer, relay, renew_timer, require_client_classes, user_context, valid_lifetime, min_valid_lifetime, max_valid_lifetime, calculate_tee_times, t1_percent, t2_percent from dhcp6_shared_network"
+    run_statement "dhcp6_shared_network" "$qry"
+
+    # table: dhcp6_subnet
+    qry="select subnet_prefix, client_class, interface, modification_ts, preferred_lifetime, min_preferred_lifetime, max_preferred_lifetime, rapid_commit, rebind_timer, relay, renew_timer, require_client_classes, shared_network_name, subnet_id, user_context, valid_lifetime, min_valid_lifetime, max_valid_lifetime, calculate_tee_times, t1_percent, t2_percent from dhcp6_subnet"
+    run_statement "dhcp6_subnet" "$qry"
+
+    # table: dhcp4_pool (should include three new columns)
+    qry="select client_class, require_client_classes, user_context from dhcp4_pool"
+    run_statement "dhcp4_pool" "$qry"
+
+    # table: dhcp6_pd_pool (should include five new columns)
+    qry="select excluded_prefix, excluded_prefix_length, client_class, require_client_classes, user_context from dhcp6_pd_pool"
+    run_statement "dhcp6_pd_pool" "$qry"
+
+    # table: dhcp6_pool (should include three new columns)
+    qry="select client_class, require_client_classes, user_context from dhcp6_pool"
+    run_statement "dhcp6_pool" "$qry"
+
+    # Verify that dhcp4_option_def column name is is_array
+    qry="select is_array from dhcp4_option_def"
+    run_statement "dhcp4_option_def verify is_array column" "$qry"
+
+    # Verify that dhcp6_option_def column name is is_array
+    qry="select is_array from dhcp6_option_def"
+    run_statement "dhcp6_option_def verify is_array column" "$qry"
+
+    # Schema upgrade from 8.2 to 9.3
+
+    # New DDNS columns.
+
+    # table: dhcp4_shared_network (should include six new columns)
+    qry="select ddns_send_updates, ddns_override_no_update, ddns_override_client_update, ddns_replace_client_name, ddns_generated_prefix, ddns_qualifying_suffix from dhcp4_shared_network"
+    run_statement "dhcp4_shared_network" "$qry"
+
+    # table: dhcp6_shared_network (should include six new columns)
+    qry="select ddns_send_updates, ddns_override_no_update, ddns_override_client_update, ddns_replace_client_name, ddns_generated_prefix, ddns_qualifying_suffix from dhcp6_shared_network"
+    run_statement "dhcp6_shared_network" "$qry"
+
+    # table: dhcp4_subnet (should include six new columns)
+    qry="select ddns_send_updates, ddns_override_no_update, ddns_override_client_update, ddns_replace_client_name, ddns_generated_prefix, ddns_qualifying_suffix from dhcp4_subnet"
+    run_statement "dhcp4_subnet" "$qry"
+
+    # table: dhcp6_subnet (should include six new columns)
+    qry="select ddns_send_updates, ddns_override_no_update, ddns_override_client_update, ddns_replace_client_name, ddns_generated_prefix, ddns_qualifying_suffix from dhcp6_subnet"
+    run_statement "dhcp6_subnet" "$qry"
+
+    # Schema upgrade from 9.3 to 9.4.
+
+    # Non unique indexes on hosts allowing multiple reservation for the same IP.
+
+    insert_sql="\
+insert into hosts(dhcp_identifier, dhcp_identifier_type, dhcp4_subnet_id, ipv4_address) values (hex('010101010101'), 0, 1, inet_aton('192.0.2.0'));\
+insert into hosts(dhcp_identifier, dhcp_identifier_type, dhcp4_subnet_id, ipv4_address) values (hex('010101010102'), 0, 1, inet_aton('192.0.2.0'))"
+    run_command \
+        mysql_execute "$insert_sql"
+    assert_eq 0 "${EXIT_CODE}" "insert into hosts failed, expected exit code %d, actual %d"
+
+    # Schema upgrade from 9.4 to 9.5.
+
+    # table: dhcp4_shared_network (reservation_mode replaced by reservations flags)
+    qry="select reservations_global, reservations_in_subnet, reservations_out_of_pool from dhcp4_shared_network"
+    run_statement "dhcp4_shared_network" "$qry"
+
+    qry="show columns from dhcp4_shared_network like 'reservation_mode'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show columns from dhcp4_shared_network like 'reservation_mode' failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci reservation) || true
+    assert_eq 0 "${count}" "dhcp4_shared_network has still reservation_mode column. (returned count %d, expected %d)"
+
+    # table: dhcp4_subnet (reservation_mode replaced by reservations flags)
+    qry="select reservations_global, reservations_in_subnet, reservations_out_of_pool from dhcp4_subnet"
+    run_statement "dhcp4_subnet" "$qry"
+
+    qry="show columns from dhcp4_subnet like 'reservation_mode'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show columns from dhcp4_subnet like 'reservation_mode' failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci reservation) || true
+    assert_eq 0 "${count}" "dhcp4_subnet has still reservation_mode column. (returned count %d, expected %d)"
+
+    # table: dhcp6_shared_network (reservation_mode replaced by reservations flags)
+    qry="select reservations_global, reservations_in_subnet, reservations_out_of_pool from dhcp6_shared_network"
+    run_statement "dhcp6_shared_network" "$qry"
+
+    qry="show columns from dhcp6_shared_network like 'reservation_mode'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show columns from dhcp6_shared_network like 'reservation_mode' failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci reservation) || true
+    assert_eq 0 "${count}" "dhcp6_shared_network has still reservation_mode column. (returned count %d, expected %d)"
+
+    # table: dhcp6_subnet (reservation_mode replaced by reservations flags)
+    qry="select reservations_global, reservations_in_subnet, reservations_out_of_pool from dhcp6_subnet"
+    run_statement "dhcp6_subnet" "$qry"
+
+    qry="show columns from dhcp6_subnet like 'reservation_mode'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show columns from dhcp6_subnet like 'reservation_mode' failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci reservation) || true
+    assert_eq 0 "${count}" "dhcp6_subnet has still reservation_mode column. (returned count %d, expected %d)"
+
+    # Schema upgrade from 9.5 to 9.6.
+
+    # table: dhcp4_shared_network new cache_threshold and cache_max_age columns
+    qry="select cache_threshold, cache_max_age from dhcp4_shared_network"
+    run_statement "dhcp4_shared_network" "$qry"
+
+    # table: dhcp4_subnet new cache_threshold and cache_max_age columns
+    qry="select cache_threshold, cache_max_age from dhcp4_subnet"
+    run_statement "dhcp4_shared_network" "$qry"
+
+    # table: dhcp6_shared_network new cache_threshold and cache_max_age columns
+    qry="select cache_threshold, cache_max_age from dhcp6_shared_network"
+    run_statement "dhcp6_shared_network" "$qry"
+
+    # table: dhcp6_subnet new cache_threshold and cache_max_age columns
+    qry="select cache_threshold, cache_max_age from dhcp6_subnet"
+    run_statement "dhcp6_shared_network" "$qry"
+
+    qry='SELECT id FROM logs'
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "${qry} failed: expected status code %d, returned %d"
+
+    # Check upgrade from 10.0 to 11.0.
+    qry="show indexes from lease4 where key_name = 'lease4_by_expire_state'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show indexes from lease4 failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci lease4_by_expire_state)
+    assert_eq 2 "${count}" "lease4_by_expire_state wrong or missing. (expected count %d, actual %d)"
+
+    qry="show indexes from lease6 where key_name = 'lease6_by_expire_state'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show indexes from lease6 failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci lease6_by_expire_state)
+    assert_eq 2 "${count}" "lease6_by_expire_state wrong or missing. (expected count %d, actual %d)"
+
+    # Verify preferred lifetime columns exist.
+    qry="select preferred_lifetime,min_preferred_lifetime,max_preferred_lifetime from dhcp6_client_class where name=''"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "$qry failed. dhcp6_client_classes preferred lifetime columns missing?"
+
+    # Check upgrade from 11.0 to 12.0.
+
+    # Add classes with associated options.
+    qry="\
+SET @disable_audit = 1;\
+INSERT INTO dhcp4_client_class(name, modification_ts) VALUES ('foo', now());\
+INSERT INTO dhcp4_options(code, scope_id, dhcp_client_class, modification_ts) VALUES (222, 2, 'foo', now());\
+INSERT INTO dhcp6_client_class(name, modification_ts) VALUES ('foo', now());\
+INSERT INTO dhcp6_options(code, scope_id, dhcp_client_class, modification_ts) VALUES (222, 2, 'foo', now());\
+SET @disable_audit = 0"
+    run_command \
+        mysql_execute "$qry"
+    assert_eq 0 "${EXIT_CODE}" "inserting classes and options failed, expected exit code %d, actual %d"
+
+    # Delete the classes.
+    qry="\
+SET @disable_audit = 1;\
+DELETE FROM dhcp4_client_class;\
+DELETE FROM dhcp6_client_class;\
+SET @disable_audit = 0"
+    run_command \
+        mysql_execute "$qry"
+    assert_eq 0 "${EXIT_CODE}" "deleting classes failed, expected exit code %d, actual %d"
+
+    # Ensure that the DHCPv4 option was deleted.
+    qry="SELECT COUNT(*) from dhcp4_options"
+    run_statement "dhcp4_options count" "$qry" 0
+
+    # Ensure that the DHCPv6 option was deleted.
+    qry="SELECT COUNT(*) from dhcp6_options"
+    run_statement "dhcp6_options count" "$qry" 0
+
+    # Check upgrade from 12.0 to 13.0.
+    mysql_upgrade_12_to_13_test
+
+    # Check upgrade from 13.0 to 14.0.
+    mysql_upgrade_13_to_14_test
+
+    # Check upgrade from 14.0 to 15.0.
+    mysql_upgrade_14_to_15_test
+
+    # Check upgrade from 15.0 to 16.0.
+
+    # table: lease4 new relay_id remote_id column and index.
+    qry="select relay_id from lease4"
+    run_statement "lease4" "$qry"
+
+    qry="show indexes from lease4 where key_name = 'lease4_by_relay_id'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show indexes from lease4 failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci lease4_by_relay_id)
+    assert_eq 1 "${count}" "lease4_by_relay_id  wrong or missing. (expected count %d, actual %d)"
+
+    # table: lease4 new remote_id column and index.
+    qry="select remote_id from lease4"
+    run_statement "lease4" "$qry"
+
+    qry="show indexes from lease4 where key_name = 'lease4_by_remote_id'"
+    run_command \
+        mysql_execute "${qry}"
+    assert_eq 0 "${EXIT_CODE}" "show indexes from lease4 failed. (expected status code %d, returned %d)"
+    count=$(echo "${OUTPUT}" | grep -Fci lease4_by_remote_id)
+    assert_eq 1 "${count}" "lease4_by_remote_id  wrong or missing. (expected count %d, actual %d)"
+
+    # Check upgrade from 16.0 to 17.0.
+    mysql_upgrade_16_to_17_test
+
+    # Check upgrade from 17.0 to 18.0.
+    mysql_upgrade_17_to_18_test
+
+    # Check upgrade from 18.0 to 19.0.
+    mysql_upgrade_18_to_19_test
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# May accept additional parameters to be passed to lease-dump.
+mysql_lease4_dump_test() {
+    test_start "mysql.lease4_dump_test${1-}"
+
+    test_dir="@abs_top_srcdir@/src/bin/admin/tests"
+    output_dir="@abs_top_builddir@/src/bin/admin/tests"
+
+    output_file="$output_dir/data/mysql.lease4_dump_test.output.csv"
+    ref_file="$test_dir/data/lease4_dump_test.reference.csv"
+
+    # Clean up any test files left from prior failed runs unless -y was provided in which case
+    # explicitly create the file to check that it will be automatically deleted.
+    # files should be removed by kea-admin itself.
+    for i in "${output_file}" \
+             "${output_file}.tmp" \
+             "/tmp/$(basename "${output_file}").tmp" \
+    ; do
+        if printf '%s' "$@" | grep 'y' > /dev/null; then
+            touch "${i}"
+        else
+            rm -f "${i}"
+        fi
+    done
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Ok, now let's initialize the database
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" \
+        -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "could not create database, expected exit code %d, actual %d"
+
+    # Insert the reference record
+    insert_sql="\
+insert into lease4 values(10,20,30,40,(SELECT FROM_UNIXTIME(1642000000)),50,1,1,'one.example.com',0,NULL,NULL,NULL,0);
+insert into lease4 values(11,NULL,123,40,(SELECT FROM_UNIXTIME(1643210000)),50,1,1,'',1,'{  }',NULL,NULL,0);\
+insert into lease4 values(12,22,NULL,40,(SELECT FROM_UNIXTIME(1643212345)),50,1,1,'three,example,com',2,'{ \"a\": 1, \"b\": \"c\" }',NULL,NULL,0)"
+
+    run_command \
+        mysql_execute "$insert_sql"
+    assert_eq 0 "${EXIT_CODE}" "insert into lease4 failed, expected exit code %d, actual %d"
+
+    # Dump lease4 to output_file
+    run_command \
+        "${kea_admin}" lease-dump mysql -4 -u "${db_user}" -p "${db_password}" -n "${db_name}" \
+            -d "${db_scripts_dir}" -o "${output_file}" "$@"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin lease-dump -4 failed, expected exit code %d, actual %d"
+
+    # Compare the dump output to reference file, they should be identical
+    run_command \
+        cmp -s "${output_file}" "${ref_file}"
+    assert_eq 0 "${EXIT_CODE}" "dump file does not match reference file, expected exit code %d, actual %d, diff:\n$(diff ${ref_file} ${output_file})"
+
+    # Remove the files.
+    rm -f "${output_file}"
+    rm -f "${output_file}.tmp"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# May accept additional parameters to be passed to lease-dump.
+mysql_lease6_dump_test() {
+    test_start "mysql.lease6_dump_test${1-}"
+
+    test_dir="@abs_top_srcdir@/src/bin/admin/tests"
+    output_dir="@abs_top_builddir@/src/bin/admin/tests"
+
+    output_file="$output_dir/data/mysql.lease6_dump_test.output.csv"
+    ref_file="$test_dir/data/lease6_dump_test.reference.csv"
+
+    # Clean up any test files left from prior failed runs unless -y was provided in which case
+    # explicitly create the file to check that it will be automatically deleted.
+    # files should be removed by kea-admin itself.
+    for i in "${output_file}" \
+             "${output_file}.tmp" \
+             "/tmp/$(basename "${output_file}").tmp" \
+    ; do
+        if printf '%s' "$@" | grep 'y' > /dev/null; then
+            touch "${i}"
+        else
+            rm -f "${i}"
+        fi
+    done
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Ok, now let's initialize the database
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "could not create database, expected exit code %d, actual %d"
+
+    # Insert the reference record
+    insert_sql="\
+insert into lease6 values(inet6_aton('::10'),203,30,(SELECT FROM_UNIXTIME(1642000000)),40,50,1,60,128,1,1,'one.example.com',80,90,16,0,NULL,0);\
+insert into lease6 values(inet6_aton('::11'),213,30,(SELECT FROM_UNIXTIME(1643210000)),40,50,1,60,128,1,1,'',80,90,1,1,'{  }',0);\
+insert into lease6 values(inet6_aton('::12'),223,30,(SELECT FROM_UNIXTIME(1643212345)),40,50,1,60,128,1,1,'three,example,com',80,90,4,2,'{ \"a\": 1, \"b\": \"c\" }',0)"
+
+    run_command \
+        mysql_execute "$insert_sql"
+    assert_eq 0 "${EXIT_CODE}" "insert into lease6 failed, expected exit code %d, actual %d"
+
+    # Dump lease4 to output_file
+    run_command \
+        "${kea_admin}" lease-dump mysql -6 -u "${db_user}" -p "${db_password}" -n "${db_name}" \
+            -d "${db_scripts_dir}" -o "${output_file}" "$@"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin lease-dump -6 failed, expected exit code %d, actual %d"
+
+    # Compare the dump output to reference file, they should be identical
+    run_command \
+        cmp -s "${output_file}" "${ref_file}"
+    assert_eq 0 "${EXIT_CODE}" "dump file does not match reference file, expected exit code %d, actual %d, diff:\n$(diff ${ref_file} ${output_file})"
+
+    # Remove the files.
+    rm -f "${output_file}"
+    rm -f "${output_file}.tmp"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# May accept additional parameters to be passed to lease-dump or to lease-upload.
+mysql_lease4_upload_test() {
+    test_start "mysql.lease4_upload_test${1-}"
+
+    input_file="@abs_top_srcdir@/src/bin/admin/tests/data/lease4_dump_test.reference.csv"
+    input_file_cp="@abs_top_builddir@/src/bin/admin/tests/data/lease4_dump_test.reference.csv"
+    output_file="@abs_top_builddir@/src/bin/admin/tests/data/lease4_dump_test.output.csv"
+
+    if [ "${input_file}" != "${input_file_cp}" ]; then
+        cp -f ${input_file} ${input_file_cp}
+        input_file=${input_file_cp}
+        input_file_cp=""
+    fi
+
+    # Wipe the whole database.
+    mysql_wipe
+
+    # Clean up any test files left from prior failed runs unless -y was provided in which case
+    # explicitly create the file to check that it will be automatically deleted.
+    # files should be removed by kea-admin itself.
+    for i in "${input_file}.tmp" \
+             "${output_file}" \
+             "${output_file}.tmp" \
+             "/tmp/$(basename "${input_file}").tmp" \
+    ; do
+        if printf '%s' "$@" | grep 'y' > /dev/null; then
+            touch "${i}"
+        else
+            rm -f "${i}"
+        fi
+    done
+
+    # Initialize the database.
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" \
+            -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "could not create database, expected exit code %d, actual %d"
+
+    # Upload leases.
+    run_command \
+        "${kea_admin}" lease-upload mysql -4 -u "${db_user}" \
+            -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}" \
+            -i "${input_file}" "$@"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin lease-upload -4 failed, expected exit code %d, actual %d"
+
+    # Dump leases.
+    run_command \
+        "${kea_admin}" lease-dump mysql -4 -u "${db_user}" \
+            -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}" \
+            -o "${output_file}" "$@"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin lease-dump -4 failed, expected exit code %d, actual %d"
+
+    # Compare the initial file used for upload to the file retrieved from dump, they should be identical.
+    run_command \
+        cmp -s "${input_file}" "${output_file}"
+    assert_eq 0 "${EXIT_CODE}" "file resulted from dump after upload does not match file used for upload, expected exit code %d, actual %d, diff:\n$(diff ${input_file} ${output_file})"
+
+    # Remove the files.
+    if [ "${input_file}" != "${input_file_cp}" ]; then
+        rm -f "${input_file}"
+    fi
+    rm -f "${input_file}.tmp"
+    rm -f "${output_file}"
+    rm -f "${output_file}.tmp"
+
+    # Wipe the whole database.
+    mysql_wipe
+
+    test_finish 0
+}
+
+# May accept additional parameters to be passed to lease-dump or to lease-upload.
+mysql_lease6_upload_test() {
+    test_start "mysql.lease6_upload_test${1-}"
+
+    input_file="@abs_top_srcdir@/src/bin/admin/tests/data/lease6_dump_test.reference.csv"
+    input_file_cp="@abs_top_builddir@/src/bin/admin/tests/data/lease6_dump_test.reference.csv"
+    output_file="@abs_top_builddir@/src/bin/admin/tests/data/lease6_dump_test.output.csv"
+
+    if [ "${input_file}" != "${input_file_cp}" ]; then
+        cp -f ${input_file} ${input_file_cp}
+        input_file=${input_file_cp}
+        input_file_cp=""
+    fi
+
+    # Wipe the whole database.
+    mysql_wipe
+
+    # Clean up any test files left from prior failed runs unless -y was provided in which case
+    # explicitly create the file to check that it will be automatically deleted.
+    # files should be removed by kea-admin itself.
+    for i in "${input_file}.tmp" \
+             "${output_file}" \
+             "${output_file}.tmp" \
+             "/tmp/$(basename "${input_file}").tmp" \
+    ; do
+        if printf '%s' "$@" | grep 'y' > /dev/null; then
+            touch "${i}"
+        else
+            rm -f "${i}"
+        fi
+    done
+
+    # Initialize the database.
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" \
+            -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "could not create database, expected exit code %d, actual %d"
+
+    # Upload leases.
+    run_command \
+        "${kea_admin}" lease-upload mysql -6 -u "${db_user}" \
+            -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}" \
+            -i "${input_file}" "$@"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin lease-upload -6 failed, expected exit code %d, actual %d"
+
+    # Dump leases.
+    run_command \
+        "${kea_admin}" lease-dump mysql -6 -u "${db_user}" \
+            -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}" \
+            -o "${output_file}" "$@"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin lease-dump -6 failed, expected exit code %d, actual %d"
+
+    # Compare the initial file used for upload to the file retrieved from dump, they should be identical.
+    run_command \
+        cmp -s "${input_file}" "${output_file}"
+    assert_eq 0 "${EXIT_CODE}" "file resulted from dump after upload does not match file used for upload, expected exit code %d, actual %d, diff:\n$(diff ${input_file} ${output_file})"
+
+    # Remove the files.
+    if [ "${input_file}" != "${input_file_cp}" ]; then
+        rm -f "${input_file}"
+    fi
+    rm -f "${input_file}.tmp"
+    rm -f "${output_file}"
+    rm -f "${output_file}.tmp"
+
+    # Wipe the whole database.
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies lease4_stat trigger operations on
+# an new, empty database.  It inserts, updates, and
+# deletes various leases, checking lease4_stat
+# values along the way.
+mysql_lease4_stat_test() {
+    test_start "mysql.lease4_stat_test"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Ok, now let's initialize the database
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin db-init mysql failed, expected %d, returned non-zero status code %d"
+
+    # Verify lease4 stat table is present
+    qry="select count(subnet_id) from lease4_stat"
+    run_statement "#1" "$qry" 0
+
+    # Insert lease4
+    qry="insert into lease4 (address, subnet_id, state) values (111,1,0)"
+    run_statement "#2" "$qry"
+
+    # Assigned state count should be 1
+    qry="select leases from lease4_stat where subnet_id = 1 and state = 0"
+    run_statement "#3" "$qry" 1
+
+    # Assigned state count should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 1 and pool_id = 0 and state = 0"
+    run_statement "#4" "$qry" 1
+
+    # Set lease state to declined
+    qry="update lease4 set state = 1 where address = 111"
+    run_statement "#5" "$qry"
+
+    # Leases state count for assigned should be 0
+    qry="select leases from lease4_stat where subnet_id = 1 and state = 0"
+    run_statement "#6" "$qry" 0
+
+    # Leases state count for assigned should be 0
+    qry="select leases from lease4_pool_stat where subnet_id = 1 and pool_id = 0 and state = 0"
+    run_statement "#7" "$qry" 0
+
+    # Leases state count for declined should be 1
+    qry="select leases from lease4_stat where subnet_id = 1 and state = 1"
+    run_statement "#8" "$qry" 1
+
+    # Leases state count for declined should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 1 and pool_id = 0 and state = 1"
+    run_statement "#9" "$qry" 1
+
+    # Delete the lease
+    qry="delete from lease4 where address = 111"
+    run_statement "#10" "$qry"
+
+    # Leases state count for declined should be 0
+    qry="select leases from lease4_stat where subnet_id = 1 and state = 1"
+    run_statement "#11" "$qry" 0
+
+    # Leases state count for declined should be 0
+    qry="select leases from lease4_pool_stat where subnet_id = 1 and pool_id = 0 and state = 1"
+    run_statement "#12" "$qry" 0
+
+    # Insert lease4
+    qry="insert into lease4 (address, subnet_id, pool_id, state) values (112,1,1,0)"
+    run_statement "#13" "$qry"
+
+    # Assigned state count should be 1
+    qry="select leases from lease4_stat where subnet_id = 1 and state = 0"
+    run_statement "#14" "$qry" 1
+
+    # Assigned state count should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 1 and pool_id = 1 and state = 0"
+    run_statement "#15" "$qry" 1
+
+    # Insert lease4
+    qry="insert into lease4 (address, subnet_id, pool_id, state) values (113,1,2,0)"
+    run_statement "#16" "$qry"
+
+    # Assigned state count should be 2
+    qry="select leases from lease4_stat where subnet_id = 1 and state = 0"
+    run_statement "#17" "$qry" 2
+
+    # Assigned state count should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 1 and pool_id = 1 and state = 0"
+    run_statement "#18" "$qry" 1
+
+    # Assigned state count should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 1 and pool_id = 2 and state = 0"
+    run_statement "#19" "$qry" 1
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that lease6_stat triggers operate correctly
+# for using a given address and lease_type.  It will
+# insert a lease, update it, and delete checking the
+# lease stat counts along the way.  It assumes the
+# database has been created but is empty.
+# param addr - address to use to add to subnet 1
+# param ltype - type of lease to create
+mysql_lease6_stat_per_type() {
+    addr=$1;shift
+    addr1=$1;shift
+    addr2=$1;shift
+    ltype=$1
+
+    # insert a lease6 for addr and ltype, state assigned
+    qry="insert into lease6 (address, lease_type, subnet_id, state) values (inet6_aton('$addr'),$ltype,1,0)"
+    run_statement "#2" "$qry"
+
+    # assigned stat should be 1
+    qry="select leases from lease6_stat where subnet_id = 1 and lease_type = $ltype and state = 0"
+    run_statement "#3" "$qry" 1
+
+    # assigned stat should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 1 and lease_type = $ltype and pool_id = 0 and state = 0"
+    run_statement "#4" "$qry" 1
+
+    # update the lease, changing state to declined
+    qry="update lease6 set state = 1 where address = inet6_aton('$addr')"
+    run_statement "#5" "$qry"
+
+    # leases stat for assigned state should be 0
+    qry="select leases from lease6_stat where subnet_id = 1 and lease_type = $ltype and state = 0"
+    run_statement "#6" "$qry" 0
+
+    # leases stat for assigned state should be 0
+    qry="select leases from lease6_pool_stat where subnet_id = 1 and lease_type = $ltype and pool_id = 0 and state = 0"
+    run_statement "#7" "$qry" 0
+
+    # leases count for declined state should be 1
+    qry="select leases from lease6_stat where subnet_id = 1 and lease_type = $ltype and state = 1"
+    run_statement "#8" "$qry" 1
+
+    # leases count for declined state should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 1 and lease_type = $ltype and pool_id = 0 and state = 1"
+    run_statement "#9" "$qry" 1
+
+    # delete the lease
+    qry="delete from lease6 where address = inet6_aton('$addr')"
+    run_statement "#10" "$qry"
+
+    # leases count for declined state should be 0
+    qry="select leases from lease6_stat where subnet_id = 1 and lease_type = $ltype and state = 0"
+    run_statement "#11" "$qry" 0
+
+    # leases count for declined state should be 0
+    qry="select leases from lease6_pool_stat where subnet_id = 1 and lease_type = $ltype and pool_id = 0 and state = 0"
+    run_statement "#12" "$qry" 0
+
+    # insert a lease6 for addr and ltype, state assigned
+    qry="insert into lease6 (address, lease_type, subnet_id, pool_id, state) values (inet6_aton('$addr1'),$ltype,1,1,0)"
+    run_statement "#13" "$qry"
+
+    # assigned stat should be 1
+    qry="select leases from lease6_stat where subnet_id = 1 and lease_type = $ltype and state = 0"
+    run_statement "#14" "$qry" 1
+
+    # assigned stat should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 1 and lease_type = $ltype and pool_id = 1 and state = 0"
+    run_statement "#15" "$qry" 1
+
+    # insert a lease6 for addr and ltype, state assigned
+    qry="insert into lease6 (address, lease_type, subnet_id, pool_id, state) values (inet6_aton('$addr2'),$ltype,1,2,0)"
+    run_statement "#16" "$qry"
+
+    # assigned stat should be 2
+    qry="select leases from lease6_stat where subnet_id = 1 and lease_type = $ltype and state = 0"
+    run_statement "#17" "$qry" 2
+
+    # assigned stat should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 1 and lease_type = $ltype and pool_id = 1 and state = 0"
+    run_statement "#18" "$qry" 1
+
+    # assigned stat should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 1 and lease_type = $ltype and pool_id = 2 and state = 0"
+    run_statement "#19" "$qry" 1
+}
+
+# Verifies that lease6_stat triggers operation correctly
+# for both NA and PD lease types, mysql_lease6_stat_per_type()
+mysql_lease6_stat_test() {
+
+    test_start "mysql.lease6_stat_test"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Ok, now let's initialize the database
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin db-init mysql failed, expected %d, returned non-zero status code %d"
+
+    # verify lease6 stat table is present
+    qry="select count(subnet_id) from lease6_stat"
+    run_statement "#1" "$qry"
+
+    # Test for address ::11, NA lease type
+    mysql_lease6_stat_per_type "::11" "::12" "::13" "0"
+
+    # Test for address ::22, PD lease type
+    mysql_lease6_stat_per_type "::22" "::23" "::24" "1"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that you can upgrade from earlier version and
+# lease<4/6>_stat tables will be populated based on existing
+# leases and that the stat triggers work properly.
+mysql_lease_stat_upgrade_test() {
+    test_start "mysql.lease_stat_upgrade_test"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # We need to create an older database with lease data so we can
+    # verify the upgrade mechanisms which prepopulate the lease stat
+    # tables.
+    #
+    # Initialize database to schema 1.0.
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+
+    # Now upgrade to schema 4.0, this has lease_state in it
+    mysql_upgrade_schema_to_version 4.0
+
+    # Now we need insert some leases to "migrate" for both v4 and v6
+    qry=\
+"insert into lease4 (address, subnet_id, state) values (111,10,0);\
+ insert into lease4 (address, subnet_id, state) values (222,10,0);\
+ insert into lease4 (address, subnet_id, state) values (333,10,1);\
+ insert into lease4 (address, subnet_id, state) values (444,10,2);\
+ insert into lease4 (address, subnet_id, state) values (555,77,0)"
+    run_statement "insert v4 leases" "$qry"
+
+    qry=\
+"insert into lease6 (address, lease_type, subnet_id, state) values (inet6_aton('::11'),0,40,0);\
+ insert into lease6 (address, lease_type, subnet_id, state) values (inet6_aton('::22'),0,40,1);\
+ insert into lease6 (address, lease_type, subnet_id, state) values (inet6_aton('::33'),1,40,0);\
+ insert into lease6 (address, lease_type, subnet_id, state) values (inet6_aton('::44'),1,50,0);\
+ insert into lease6 (address, lease_type, subnet_id, state) values (inet6_aton('::55'),1,50,0);\
+ insert into lease6 (address, lease_type, subnet_id, state) values (inet6_aton('::66'),1,40,2)"
+    run_statement "insert v6 leases" "$qry"
+
+    # Let's upgrade it to the latest version.
+    run_command \
+        "${kea_admin}" db-upgrade mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+
+    #
+    # First we'll verify lease4_stats are correct after migration.
+    #
+
+    # Assigned leases for subnet 10 should be 2
+    qry="select leases from lease4_stat where subnet_id = 10 and state = 0"
+    run_statement "#4.1" "$qry" 2
+
+    # Assigned leases for subnet 10 should be 2
+    qry="select leases from lease4_pool_stat where subnet_id = 10 and pool_id = 0 and state = 0"
+    run_statement "#4.2" "$qry" 2
+
+    # Assigned leases for subnet 77 should be 1
+    qry="select leases from lease4_stat where subnet_id = 77 and state = 0"
+    run_statement "#4.3" "$qry" 1
+
+    # Assigned leases for subnet 77 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 0 and state = 0"
+    run_statement "#4.4" "$qry" 1
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease4_stat where state = 2"
+    run_statement "#4.5" "$qry" 0
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease4_pool_stat where state = 2"
+    run_statement "#4.6" "$qry" 0
+
+    #
+    # Now we'll verify v4 trigger operation for insert, update, and delete
+    #
+
+    # Insert a new lease subnet 77
+    qry="insert into lease4 (address, subnet_id, pool_id, state) values (777,77,1,0)"
+    run_statement "#4.7" "$qry"
+
+    # Assigned count for subnet 77 should be 2
+    qry="select leases from lease4_stat where subnet_id = 77 and state = 0"
+    run_statement "#4.8" "$qry" 2
+
+    # Assigned count for subnet 77 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 0 and state = 0"
+    run_statement "#4.9" "$qry" 1
+
+    # Assigned count for subnet 77 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 1 and state = 0"
+    run_statement "#4.10" "$qry" 1
+
+    # Update the state of the new lease to declined
+    qry="update lease4 set state = 1 where address = 777"
+    run_statement "#4.11" "$qry"
+
+    # Assigned count for subnet 77 should be 1 again
+    qry="select leases from lease4_stat where subnet_id = 77 and state = 0"
+    run_statement "#4.12" "$qry" 1
+
+    # Assigned count for subnet 77 should be 1 again
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 0 and state = 0"
+    run_statement "#4.13" "$qry" 1
+
+    # Assigned count for subnet 77 should be 0 again
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 1 and state = 0"
+    run_statement "#4.14" "$qry" 0
+
+    # Declined count for subnet 77 should be 1
+    qry="select leases from lease4_stat where subnet_id = 77 and state = 1"
+    run_statement "#4.15" "$qry" 1
+
+    # Declined count for subnet 77 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 1 and state = 1"
+    run_statement "#4.16" "$qry" 1
+
+    # Delete the lease.
+    qry="delete from lease4 where address = 777"
+    run_statement "#4.17" "$qry"
+
+    # Declined count for subnet 77 should be 0
+    qry="select leases from lease4_stat where subnet_id = 77 and state = 1"
+    run_statement "#4.18" "$qry" 0
+
+    # Declined count for subnet 77 should be 0
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 1 and state = 1"
+    run_statement "#4.19" "$qry" 0
+
+    #
+    # Next we'll verify lease6_stats are correct after migration.
+    #
+
+    # Assigned leases for subnet 40 should be 1
+    qry="select leases from lease6_stat where subnet_id = 40 and lease_type = 0 and state = 0"
+    run_statement "#6.1" "$qry" 1
+
+    # Assigned leases for subnet 40 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 40 and lease_type = 0 and pool_id = 0 and state = 0"
+    run_statement "#6.2" "$qry" 1
+
+    # Assigned (PD) leases for subnet 40 should be 1
+    qry="select leases from lease6_stat where subnet_id = 40 and lease_type = 1 and state = 0"
+    run_statement "#6.3" "$qry" 1
+
+    # Assigned (PD) leases for subnet 40 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 40 and lease_type = 1 and pool_id = 0 and state = 0"
+    run_statement "#6.4" "$qry" 1
+
+    # Declined leases for subnet 40 should be 1
+    qry="select leases from lease6_stat where subnet_id = 40 and lease_type = 0 and state = 1"
+    run_statement "#6.5" "$qry" 1
+
+    # Declined leases for subnet 40 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 40 and lease_type = 0 and pool_id = 0 and state = 1"
+    run_statement "#6.6" "$qry" 1
+
+    # Assigned (PD) leases for subnet 50 should be 2
+    qry="select leases from lease6_stat where subnet_id = 50 and lease_type = 1 and state = 0"
+    run_statement "#6.7" "$qry" 2
+
+    # Assigned (PD) leases for subnet 50 should be 2
+    qry="select leases from lease6_pool_stat where subnet_id = 50 and lease_type = 1 and pool_id = 0 and state = 0"
+    run_statement "#6.8" "$qry" 2
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease6_stat where state = 2"
+    run_statement "#6.9" "$qry" 0
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease6_pool_stat where state = 2"
+    run_statement "#6.10" "$qry" 0
+
+    #
+    # Finally we'll verify v6 trigger operation for insert, update, and delete
+    #
+
+    # Insert a new lease subnet 50
+    qry="insert into lease6 (address, subnet_id, pool_id, lease_type, state) values (inet6_aton('::77'),50,1,1,0)"
+    run_statement "#6.11" "$qry"
+
+    # Assigned count for subnet 50 should be 3
+    qry="select leases from lease6_stat where subnet_id = 50 and lease_type = 1 and state = 0"
+    run_statement "#6.12" "$qry" 3
+
+    # Assigned count for subnet 50 should be 2
+    qry="select leases from lease6_pool_stat where subnet_id = 50 and lease_type = 1 and pool_id = 0 and state = 0"
+    run_statement "#6.13" "$qry" 2
+
+    # Assigned count for subnet 50 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 50 and lease_type = 1 and pool_id = 1 and state = 0"
+    run_statement "#6.14" "$qry" 1
+
+    # Update the state of the new lease to expired
+    qry="update lease6 set state = 2 where address = inet6_aton('::77')"
+    run_statement "#6.15" "$qry"
+
+    # Assigned count for subnet 50 should be 2 again
+    qry="select leases from lease6_stat where subnet_id = 50 and lease_type = 1 and state = 0"
+    run_statement "#6.16" "$qry" 2
+
+    # Assigned count for subnet 50 should be 0 again
+    qry="select leases from lease6_pool_stat where subnet_id = 50 and lease_type = 1 and pool_id = 1 and state = 0"
+    run_statement "#6.17" "$qry" 0
+
+    # Delete another PD lease.
+    qry="delete from lease6 where address = inet6_aton('::55')"
+    run_statement "#6.18" "$qry"
+
+    # Assigned leases for subnet 50 should be 1
+    qry="select leases from lease6_stat where subnet_id = 50 and lease_type = 1 and state = 0"
+    run_statement "#6.19" "$qry" 1
+
+    # Assigned leases for subnet 50 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 50 and lease_type = 1 and pool_id = 0 and state = 0"
+    run_statement "#6.20" "$qry" 1
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+mysql_lease_stat_recount_test() {
+    test_start "mysql.lease_stat_recount_test"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # Ok, now let's initialize the database
+    run_command \
+        "${kea_admin}" db-init mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin db-init mysql failed, expected %d, returned non-zero status code %d"
+
+    # Now we need insert some leases to "recount"
+    qry=\
+"insert into lease4 (address, subnet_id, state) values (111,10,0);\
+ insert into lease4 (address, subnet_id, pool_id, state) values (222,10,1,0);\
+ insert into lease4 (address, subnet_id, state) values (333,10,1);\
+ insert into lease4 (address, subnet_id, state) values (444,10,2);\
+ insert into lease4 (address, subnet_id, pool_id, state) values (555,77,2,0)"
+    run_statement "insert v4 leases" "$qry"
+
+    qry=\
+"insert into lease6 (address, lease_type, subnet_id, state) values ('::111',0,40,0);\
+ insert into lease6 (address, lease_type, subnet_id, pool_id, state) values ('::222',0,40,1,1);\
+ insert into lease6 (address, lease_type, subnet_id, state) values ('::333',1,40,0);\
+ insert into lease6 (address, lease_type, subnet_id, state) values ('::444',1,50,0);\
+ insert into lease6 (address, lease_type, subnet_id, pool_id, state) values ('::555',1,50,2,0);\
+ insert into lease6 (address, lease_type, subnet_id, state) values ('::666',1,40,2)"
+    run_statement "insert v6 leases" "$qry"
+
+    # Now we change some counters.
+    qry=\
+"insert into lease4_stat (subnet_id, state, leases) values (20,0,1);\
+ update lease4_stat set leases = 5 where subnet_id = 10 and state = 0;\
+ delete from lease4_stat where subnet_id = 10 and state = 2"
+    run_statement "change v4 stats" "$qry"
+
+    qry=\
+"insert into lease4_pool_stat (subnet_id, pool_id, state, leases) values (20,3,0,1);\
+ update lease4_pool_stat set leases = 5 where subnet_id = 10 and pool_id = 0 and state = 0;\
+ delete from lease4_pool_stat where subnet_id = 10 and pool_id = 0 and state = 2"
+    run_statement "change v4 stats" "$qry"
+
+    qry=\
+"insert into lease6_stat (subnet_id, lease_type, state, leases) values (20,1,0,1);\
+ update lease6_stat set leases = 5 where subnet_id = 40 and lease_type = 0 and state = 0;\
+ delete from lease6_stat where subnet_id = 40 and lease_type = 1 and state = 2"
+    run_statement "change v6 stats" "$qry"
+
+    qry=\
+"insert into lease6_pool_stat (subnet_id, pool_id, lease_type, state, leases) values (20,3,1,0,1);\
+ update lease6_pool_stat set leases = 5 where subnet_id = 40 and lease_type = 0 and pool_id = 0 and state = 0;\
+ delete from lease6_pool_stat where subnet_id = 40 and lease_type = 1 and pool_id = 0 and state = 2"
+    run_statement "change v6 stats" "$qry"
+
+    # Recount all statistics from scratch.
+    run_command \
+        "${kea_admin}" stats-recount mysql -u "${db_user}" -p "${db_password}" -n "${db_name}"
+    assert_eq 0 "${EXIT_CODE}" "kea-admin stats-recount mysql failed, expected %d, returned non-zero status code %d"
+
+    #
+    # First we'll verify lease4_stats are correct after recount.
+    #
+
+    # Assigned leases for subnet 10 should be 2
+    qry="select leases from lease4_stat where subnet_id = 10 and state = 0"
+    run_statement "#4.1" "$qry" 2
+
+    # Assigned leases for subnet 10 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 10 and pool_id = 0 and state = 0"
+    run_statement "#4.2" "$qry" 1
+
+    # Assigned leases for subnet 10 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 10 and pool_id = 1 and state = 0"
+    run_statement "#4.3" "$qry" 1
+
+    # Declined leases for subnet 10 should be 1
+    qry="select leases from lease4_stat where subnet_id = 10 and state = 1"
+    run_statement "#4.4" "$qry" 1
+
+    # Assigned leases for subnet 10 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 10 and pool_id = 0 and state = 1"
+    run_statement "#4.5" "$qry" 1
+
+    # Assigned leases for subnet 77 should be 1
+    qry="select leases from lease4_stat where subnet_id = 77 and state = 0"
+    run_statement "#4.6" "$qry" 1
+
+    # Assigned leases for subnet 77 should be 1
+    qry="select leases from lease4_pool_stat where subnet_id = 77 and pool_id = 2 and state = 0"
+    run_statement "#4.7" "$qry" 1
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease4_stat where state = 2"
+    run_statement "#4.8" "$qry" 0
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease4_pool_stat where state = 2"
+    run_statement "#4.9" "$qry" 0
+
+    #
+    # Next we'll verify lease6_stats are correct after recount.
+    #
+
+    # Assigned leases for subnet 40 should be 1
+    qry="select leases from lease6_stat where subnet_id = 40 and lease_type = 0 and state = 0"
+    run_statement "#6.1" "$qry" 1
+
+    # Assigned leases for subnet 40 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 40 and lease_type = 0 and pool_id = 0 and state = 0"
+    run_statement "#6.2" "$qry" 1
+
+    # Assigned (PD) leases for subnet 40 should be 1
+    qry="select leases from lease6_stat where subnet_id = 40 and lease_type = 1 and state = 0"
+    run_statement "#6.3" "$qry" 1
+
+    # Assigned (PD) leases for subnet 40 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 40 and lease_type = 1 and pool_id = 0 and state = 0"
+    run_statement "#6.4" "$qry" 1
+
+    # Declined leases for subnet 40 should be 1
+    qry="select leases from lease6_stat where subnet_id = 40 and lease_type = 0 and state = 1"
+    run_statement "#6.5" "$qry" 1
+
+    # Declined leases for subnet 40 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 40 and lease_type = 0 and pool_id = 1 and state = 1"
+    run_statement "#6.6" "$qry" 1
+
+    # Assigned (PD) leases for subnet 50 should be 2
+    qry="select leases from lease6_stat where subnet_id = 50 and lease_type = 1 and state = 0"
+    run_statement "#6.7" "$qry" 2
+
+    # Assigned (PD) leases for subnet 50 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 50 and lease_type = 1 and pool_id = 0 and state = 0"
+    run_statement "#6.8" "$qry" 1
+
+    # Assigned (PD) leases for subnet 50 should be 1
+    qry="select leases from lease6_pool_stat where subnet_id = 50 and lease_type = 1 and pool_id = 2 and state = 0"
+    run_statement "#6.9" "$qry" 1
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease6_stat where state = 2"
+    run_statement "#6.10" "$qry" 0
+
+    # Should be no records for EXPIRED
+    qry="select count(subnet_id) from lease6_pool_stat where state = 2"
+    run_statement "#6.11" "$qry" 0
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that you can upgrade from an earlier version and
+# that unused subnet ID values in hosts and options tables are
+# converted to NULL.
+mysql_unused_subnet_id_test() {
+    test_start "mysql.unused_subnet_id_test"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # We need to create an older database with lease data so we can
+    # verify the upgrade mechanisms which convert subnet id values
+    #
+    # Initialize database to schema 1.0.
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+
+    # Now upgrade to schema 6.0, this has lease_state in it
+    mysql_upgrade_schema_to_version 6.0
+
+    # Now we need insert some hosts to "migrate" for both v4 and v6
+    qry=\
+"insert into hosts (dhcp_identifier_type, dhcp_identifier, dhcp4_subnet_id, dhcp6_subnet_id, hostname)\
+   values (0, '0123456', 0, 0, 'both'); \
+ insert into hosts (dhcp_identifier_type, dhcp_identifier, dhcp4_subnet_id, dhcp6_subnet_id, hostname)\
+   values (0, '1123456', 4, 0, 'v4only');
+ insert into hosts (dhcp_identifier_type, dhcp_identifier, dhcp4_subnet_id, dhcp6_subnet_id, hostname)\
+   values (0, '2123456', 0, 6, 'v6only');\
+ insert into hosts (dhcp_identifier_type, dhcp_identifier, dhcp4_subnet_id, dhcp6_subnet_id, hostname) \
+   values (0, '3123456', 4, 6, 'neither')"
+
+    run_statement "insert hosts" "$qry"
+
+    # Now we need insert some options to "migrate" for both v4 and v6
+    qry=\
+"insert into dhcp4_options (code, dhcp4_subnet_id, scope_id) values (1, 4, 0);\
+ insert into dhcp4_options (code, dhcp4_subnet_id, scope_id) values (2, 0, 0);\
+ insert into dhcp6_options (code, dhcp6_subnet_id, scope_id) values (1, 6, 0);\
+ insert into dhcp6_options (code, dhcp6_subnet_id, scope_id) values (2, 0, 0)"
+
+    run_statement "insert options" "$qry"
+
+    # Ok, we have a 6.0 database with hosts and options. Let's upgrade it to 7.0
+    # For versions higher than 7.0 some new constraints fail to be added
+    # with the not empty tables, for instance the 9.1 -> 9.2 upgrade script
+    # can raise a MySQL error 1452 for fk_dhcp4_options_subnet constraint.
+    mysql_upgrade_schema_to_version 7.0
+
+    # Version should be new 7.0
+    version=$("${kea_admin}" db-version mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}")
+    assert_str_eq "7.0" "${version}" "Expected kea-admin to return %s, returned value was %s"
+
+    # Two hosts should have null v4 subnet ids
+    qry="select count(host_id) from hosts where dhcp4_subnet_id is null"
+    run_statement "#hosts.1" "$qry" 2
+
+    # Two hosts should have v4 subnet ids = 4
+    qry="select count(host_id) from hosts where dhcp4_subnet_id = 4"
+    run_statement "#hosts.2" "$qry" 2
+
+    # Two hosts should have null v6 subnet ids
+    qry="select count(host_id) from hosts where dhcp6_subnet_id is null"
+    run_statement "#hosts.3" "$qry" 2
+
+    # Two hosts should should have v6 subnet ids = 6
+    qry="select count(host_id) from hosts where dhcp6_subnet_id = 6"
+    run_statement "#hosts.4" "$qry" 2
+
+    # One option should have null v4 subnet id
+    qry="select count(option_id) from dhcp4_options where dhcp4_subnet_id is null"
+    run_statement "#options.1" "$qry" 1
+
+    # One option should have v4 subnet id = 4
+    qry="select count(option_id) from dhcp4_options where dhcp4_subnet_id = 4"
+    run_statement "#options.2" "$qry" 1
+
+    # One option should have null v6 subnet id
+    qry="select count(option_id) from dhcp6_options where dhcp6_subnet_id is null"
+    run_statement "#options.3" "$qry" 1
+
+    # One option should have v4 subnet id = 6
+    qry="select count(option_id) from dhcp6_options where dhcp6_subnet_id = 6"
+    run_statement "#options.4" "$qry" 1
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that you can upgrade from an earlier version and
+# that reservation_mode values in subnet and shared network tables are
+# converted to new reservations flags.
+mysql_reservation_mode_upgrade_test() {
+    test_start "mysql.reservation_mode_upgrade_test"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # We need to create an older database with lease data so we can
+    # verify the upgrade mechanisms which convert reservation values
+    #
+    # Initialize database to schema 1.0.
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+
+    # Now upgrade to schema 9.4, the last version with reservation_mode
+    mysql_upgrade_schema_to_version 9.4
+
+    # Now we need insert some subnets and shared networks.
+    sql=\
+"set @disable_audit = 1; \
+ insert into dhcp4_shared_network (name, modification_ts, reservation_mode)\
+    values ('test0', current_timestamp, 0);\
+ insert into dhcp4_shared_network (name, modification_ts, reservation_mode)\
+    values ('test1', current_timestamp, 1);\
+ insert into dhcp4_shared_network (name, modification_ts, reservation_mode)\
+    values ('test2', current_timestamp, 2);\
+ insert into dhcp4_shared_network (name, modification_ts, reservation_mode)\
+    values ('test3', current_timestamp, 3);\
+ insert into dhcp4_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (1234, '192.0.0.0/24', current_timestamp, 0);\
+ insert into dhcp4_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (2345, '192.0.1.0/24', current_timestamp, 1);\
+ insert into dhcp4_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (3456, '192.0.2.0/24', current_timestamp, 2);\
+ insert into dhcp4_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (4567, '192.0.3.0/24', current_timestamp, 3);\
+ insert into dhcp6_shared_network (name, modification_ts, reservation_mode)\
+    values ('test0', current_timestamp, 0);\
+ insert into dhcp6_shared_network (name, modification_ts, reservation_mode)\
+    values ('test1', current_timestamp, 1);\
+ insert into dhcp6_shared_network (name, modification_ts, reservation_mode)\
+    values ('test2', current_timestamp, 2);\
+ insert into dhcp6_shared_network (name, modification_ts, reservation_mode)\
+    values ('test3', current_timestamp, 3);\
+ insert into dhcp6_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (1234, '2001:db8::/64', current_timestamp, 0);\
+ insert into dhcp6_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (2345, '2001:db8:1::/64', current_timestamp, 1);\
+ insert into dhcp6_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (3456, '2001:db8:2::/64', current_timestamp, 2);\
+ insert into dhcp6_subnet (subnet_id, subnet_prefix, modification_ts, reservation_mode)\
+    values (4567, '2001:db8:3::/64', current_timestamp, 3);\
+ set @disable_audit = 0"
+
+    run_statement "insert reservation_mode" "$sql"
+
+    qry="select count(*) from dhcp4_shared_network"
+    run_statement "#get 4_shared count before update" "$qry" 4
+
+    qry="select count(*) from dhcp4_subnet"
+    run_statement "#get 4_subnet count before update" "$qry" 4
+
+    qry="select count(*) from dhcp6_shared_network"
+    run_statement "#get 6_shared count before update" "$qry" 4
+
+    qry="select count(*) from dhcp6_subnet"
+    run_statement "#get 6_subnet count before update" "$qry" 4
+
+    # Upgrade to schema 9.5.
+    mysql_upgrade_schema_to_version 9.5
+
+    # Test DISABLED (0) -> false, false, null
+    qry="select count(id) from dhcp4_shared_network where reservations_global = false and reservations_in_subnet = false and reservations_out_of_pool is null and name = 'test0'"
+    run_statement "#4_shared_disabled" "$qry" 1
+
+    # Test OUT_OF_POOL (1) -> false, true, true
+    qry="select count(id) from dhcp4_shared_network where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = true and name = 'test1'"
+    run_statement "#4_shared_out_of_pool" "$qry" 1
+
+    # Test GLOBAL (2) -> true, false, null
+    qry="select count(id) from dhcp4_shared_network where reservations_global = true and reservations_in_subnet = false and reservations_out_of_pool is null and name = 'test2'"
+    run_statement "#4_shared_global" "$qry" 1
+
+    # Test ALL (3) -> false, true, false
+    qry="select count(id) from dhcp4_shared_network where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = false and name = 'test3'"
+    run_statement "#4_shared_all" "$qry" 1
+
+    # Test DISABLED (0) -> false, false, null
+    qry="select count(subnet_id) from dhcp4_subnet where reservations_global = false and reservations_in_subnet = false and reservations_out_of_pool is null and subnet_prefix = '192.0.0.0/24'"
+    run_statement "#4_subnet_disabled" "$qry" 1
+
+    # Test OUT_OF_POOL (1) -> false, true, true
+    qry="select count(subnet_id) from dhcp4_subnet where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = true and subnet_prefix = '192.0.1.0/24'"
+    run_statement "#4_subnet_out_of_pool" "$qry" 1
+
+    # Test GLOBAL (2) -> true, false, null
+    qry="select count(subnet_id) from dhcp4_subnet where reservations_global = true and reservations_in_subnet = false and reservations_out_of_pool is null and subnet_prefix = '192.0.2.0/24'"
+    run_statement "#4_subnet_global" "$qry" 1
+
+    # Test ALL (3) -> false, true, false
+    qry="select count(subnet_id) from dhcp4_subnet where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = false and subnet_prefix = '192.0.3.0/24'"
+    run_statement "#4_subnet_all" "$qry" 1
+
+    # Test DISABLED (0) -> false, false, null
+    qry="select count(id) from dhcp6_shared_network where reservations_global = false and reservations_in_subnet = false and reservations_out_of_pool is null and name = 'test0'"
+    run_statement "#6_shared_disabled" "$qry" 1
+
+    # Test OUT_OF_POOL (1) -> false, true, true
+    qry="select count(id) from dhcp6_shared_network where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = true and name = 'test1'"
+    run_statement "#6_shared_out_of_pool" "$qry" 1
+
+    # Test GLOBAL (2) -> true, false, null
+    qry="select count(id) from dhcp6_shared_network where reservations_global = true and reservations_in_subnet = false and reservations_out_of_pool is null and name = 'test2'"
+    run_statement "#6_shared_global" "$qry" 1
+
+    # Test ALL (3) -> false, true, false
+    qry="select count(id) from dhcp6_shared_network where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = false and name = 'test3'"
+    run_statement "#6_shared_all" "$qry" 1
+
+    # Test DISABLED (0) -> false, false, null
+    qry="select count(subnet_id) from dhcp6_subnet where reservations_global = false and reservations_in_subnet = false and reservations_out_of_pool is null and subnet_prefix = '2001:db8::/64'"
+    run_statement "#6_subnet_disabled" "$qry" 1
+
+    # Test OUT_OF_POOL (1) -> false, true, true
+    qry="select count(subnet_id) from dhcp6_subnet where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = true and subnet_prefix = '2001:db8:1::/64'"
+    run_statement "#6_subnet_out_of_pool" "$qry" 1
+
+    # Test GLOBAL (2) -> true, false, null
+    qry="select count(subnet_id) from dhcp6_subnet where reservations_global = true and reservations_in_subnet = false and reservations_out_of_pool is null and subnet_prefix = '2001:db8:2::/64'"
+    run_statement "#6_subnet_global" "$qry" 1
+
+    # Test ALL (3) -> false, true, false
+    qry="select count(subnet_id) from dhcp6_subnet where reservations_global = false and reservations_in_subnet = true and reservations_out_of_pool = false and subnet_prefix = '2001:db8:3::/64'"
+    run_statement "#6_subnet_all" "$qry" 1
+
+    qry="select count(*) from dhcp4_shared_network"
+    run_statement "#get 4_shared count before update" "$qry" 4
+
+    qry="select count(*) from dhcp4_subnet"
+    run_statement "#get 4_subnet count before update" "$qry" 4
+
+    qry="select count(*) from dhcp6_shared_network"
+    run_statement "#get 6_shared count before update" "$qry" 4
+
+    qry="select count(*) from dhcp6_subnet"
+    run_statement "#get 6_subnet count before update" "$qry" 4
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that several tables for holding client classes are created
+# and the triggers and stored procedures positioning the client classes
+# and validating their dependencies behave correctly.
+mysql_client_class_test() {
+    table_prefix="$1"
+
+    test_start "mysql.client_classes_test.${table_prefix}"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # We need to create an older database with lease data so we can
+    # verify the upgrade mechanisms which validates client classes and
+    # dependencies behave correctly
+    #
+    # Initialize database to schema 1.0.
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+
+    # Now upgrade to schema 10.0 that can contain client classes.
+    mysql_upgrade_schema_to_version 10.0
+
+    # Insert a new server.
+    sql=\
+"SET @disable_audit = 1; \
+ INSERT INTO ${table_prefix}_server (tag, modification_ts) VALUES ('server1', NOW()); \
+ SET @disable_audit = 0"
+
+    run_statement "insert servers" "$sql"
+
+    # Insert client class foo at the top of the hierarchy. It has no dependencies.
+    sql=\
+"START TRANSACTION; \
+ SET @disable_audit = 1; \
+ INSERT INTO ${table_prefix}_client_class (name, modification_ts, follow_class_name, depend_on_known_directly) VALUES ('foo', NOW(), NULL, 1); \
+ SET @last_id = LAST_INSERT_ID(); \
+ INSERT INTO ${table_prefix}_client_class_server (class_id, server_id) \
+     VALUES (@last_id, (SELECT id FROM ${table_prefix}_server WHERE tag = 'all')); \
+ SET @disable_audit = 0; \
+ COMMIT"
+    run_statement "insert client class foo" "$sql"
+
+    # Insert client class foobar after the foo class.
+    sql=\
+"START TRANSACTION; \
+ SET @disable_audit = 1; \
+ INSERT INTO ${table_prefix}_client_class (name, modification_ts, follow_class_name) VALUES ('foobar', NOW(), NULL); \
+ SET @last_id = LAST_INSERT_ID(); \
+ INSERT INTO ${table_prefix}_client_class_server (class_id, server_id) \
+     VALUES (@last_id, (SELECT id FROM ${table_prefix}_server WHERE tag = 'server1')); \
+ SET @disable_audit = 0; \
+ COMMIT"
+    run_statement "insert client class foobar" "$sql"
+
+    # Insert the client class bar at the end. This class depends on the client
+    # class foo.
+    sql=\
+"START TRANSACTION; \
+ SET @disable_audit = 1; \
+ INSERT INTO ${table_prefix}_client_class (name, modification_ts, follow_class_name) VALUES ('bar', NOW(), 'foo'); \
+ SET @last_id = LAST_INSERT_ID(); \
+ INSERT INTO ${table_prefix}_client_class_server (class_id, server_id) \
+     VALUES (@last_id, (SELECT id FROM ${table_prefix}_server WHERE tag = 'server1')); \
+ INSERT INTO ${table_prefix}_client_class_dependency (class_id, dependency_id) \
+     VALUES (@last_id, (SELECT id FROM ${table_prefix}_client_class WHERE name = 'foo')); \
+ SET @disable_audit = 0; \
+ COMMIT"
+    run_statement "insert client class bar" "$sql"
+
+    # Ensure that all three classes have been added in the expected order.
+    sql="SELECT o.order_index FROM ${table_prefix}_client_class AS c \
+         INNER JOIN ${table_prefix}_client_class_order AS o \
+             ON c.id = o.class_id WHERE c.name = 'foo'"
+    run_statement "#get order index of class foo" "$sql" 1
+
+    sql="SELECT o.order_index FROM ${table_prefix}_client_class AS c \
+         INNER JOIN ${table_prefix}_client_class_order AS o \
+             ON c.id = o.class_id WHERE c.name = 'bar'"
+    run_statement "#get order index of class bar" "$sql" 2
+
+    sql="SELECT o.order_index FROM ${table_prefix}_client_class AS c \
+         INNER JOIN ${table_prefix}_client_class_order AS o \
+             ON c.id = o.class_id WHERE c.name = 'foobar'"
+    run_statement "#get order index of class foobar" "$sql" 3
+
+    # Update the class bar moving behind the foobar class.
+    sql=\
+"START TRANSACTION; \
+ SET @disable_audit = 1; \
+ UPDATE ${table_prefix}_client_class SET follow_class_name = 'foobar' WHERE name = 'bar'; \
+ SET @disable_audit = 0; \
+ COMMIT"
+    run_statement "update client class bar with re-positioning" "$sql"
+
+    # Check that the order of the last two classes was changed.
+    sql="SELECT o.order_index FROM ${table_prefix}_client_class AS c \
+         INNER JOIN ${table_prefix}_client_class_order AS o \
+             ON c.id = o.class_id WHERE c.name = 'bar'"
+    run_statement "#get order index of class bar" "$sql" 4
+
+    sql="SELECT o.order_index FROM ${table_prefix}_client_class AS c \
+         INNER JOIN ${table_prefix}_client_class_order AS o \
+             ON c.id = o.class_id WHERE c.name = 'foobar'"
+    run_statement "#get order index of class foobar" "$sql" 3
+
+    # Check that the first class is still at the first position.
+    sql="SELECT o.order_index FROM ${table_prefix}_client_class AS c \
+         INNER JOIN ${table_prefix}_client_class_order AS o \
+             ON c.id = o.class_id WHERE c.name = 'foo'"
+    run_statement "#get order index of class foo" "$sql" 1
+
+    sql=\
+"SET @disable_audit = 1; \
+ INSERT INTO ${table_prefix}_options(code, scope_id, dhcp_client_class, modification_ts) \
+     VALUES (222, 0, '', now()); \
+ SET @disable_audit = 0"
+    run_statement "add option with an empty dhcp_client class" "$sql"
+
+    # Let's make sure that we can upgrade to version 12.0. This version
+    # introduces a foreign key between dhcpX_client_class and dhcpX_options
+    # table. The migration should set the dhcp_client_class to NULL.
+    mysql_upgrade_schema_to_version 12.0
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that the migration 9.6 to 10.0 modifies the length of
+# the tag column in the dhcp4_server and dhcp6_server tables.
+mysql_shrink_server_tag_test() {
+
+    test_start "mysql.shrink_server_tag_test"
+
+    mysql_wipe
+
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+    # Now upgrade to schema 9.6.
+    mysql_upgrade_schema_to_version 9.6
+
+    # Unfortunately, this schema version already contains 64 character
+    # long server tags. Let's extend it back, but not to 256 characters
+    # because it is proven to cause errors in some configurations.
+    sql=\
+"ALTER TABLE dhcp4_server MODIFY COLUMN tag VARCHAR(128) NOT NULL"
+    run_statement "extend server DHCPv4 server tag column", "$sql"
+
+    sql=\
+"ALTER TABLE dhcp6_server MODIFY COLUMN tag VARCHAR(128) NOT NULL"
+    run_statement "extend server DHCPv6 server tag column", "$sql"
+
+    mysql_upgrade_schema_to_version 10.0
+
+    # Ensure that the migration corrected the lengths.
+    sql=\
+"SELECT CHARACTER_MAXIMUM_LENGTH \
+     FROM INFORMATION_SCHEMA.COLUMNS \
+ WHERE TABLE_SCHEMA='${db_name}' AND TABLE_NAME='dhcp4_server' AND COLUMN_NAME='tag'"
+    run_statement "get new tag column length" "$sql" 64
+
+    sql=\
+"SELECT CHARACTER_MAXIMUM_LENGTH \
+     FROM INFORMATION_SCHEMA.COLUMNS \
+ WHERE TABLE_SCHEMA='${db_name}' AND TABLE_NAME='dhcp6_server' AND COLUMN_NAME='tag'"
+    run_statement "get new tag column length" "$sql" 64
+
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that you can upgrade from earlier version and that initial EMPTY DUID
+# (0x00) value in lease6 table is updated to proper value (0x000000).
+mysql_update_empty_duid_test() {
+    test_start "mysql.update_empty_duid_test"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # We need to create an older database with lease data so we can
+    # verify the upgrade mechanisms which convert empty duid values
+    #
+    # Initialize database to schema 1.0.
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+
+    # Now upgrade to schema 16.0
+    mysql_upgrade_schema_to_version 16.0
+
+    sql=\
+"insert into lease6 values('::10',203,30,(SELECT FROM_UNIXTIME(1642000000)),40,50,1,60,70,1,1,'one.example.com',80,90,16,0,NULL);\
+ insert into lease6 values('::11',UNHEX('00'),30,(SELECT FROM_UNIXTIME(1643210000)),40,50,1,60,70,1,1,'',80,90,1,1,'{  }')"
+
+    run_statement "insert v6 leases" "$sql"
+
+    # Let's upgrade it to the latest version.
+    run_command \
+        "${kea_admin}" db-upgrade mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+
+    # leases count for declined state should be 1 with DUID updated (0x000000)
+    qry="select count(*) from lease6 where address = inet6_aton('::11') and duid = 0x000000 and state = 1"
+    run_statement "#2" "$qry" 1
+
+    # leases count for non declined state should be 1 with DUID unchanged (0x323033)
+    qry="select count(*) from lease6 where address = inet6_aton('::10') and duid = 0x323033 and state = 0"
+    run_statement "#3" "$qry" 1
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Verifies that converting from lease6.address to binary column works
+# while preserving data.
+mysql_update_v6_addresses_to_binary() {
+    test_start "mysql.update_lease6_address_to_binary"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    # We need to create an older database with lease data so we can
+    # verify the upgrade mechanisms which convert empty duid values
+    #
+    # Initialize database to schema 1.0.
+    mysql -u"${db_user}" -p"${db_password}" "${db_name}" < "@abs_top_srcdir@/src/bin/admin/tests/dhcpdb_create_1.0.mysql"
+
+    # Now upgrade to schema 18.0
+    mysql_upgrade_schema_to_version 18.0
+
+    sql=\
+"insert into lease6 (address, lease_type, subnet_id) values('2601:19e:8100:1e10:b1b:51a8:f616:cf14', 1, 1);
+insert into lease6 (address, lease_type, subnet_id) values('2601:19e:8100:1e10:b1b:51a8:f616:cf15', 1, 1);"
+
+    run_statement "insert v6 leases" "$sql"
+
+    # Insert ipv6_reservations address is binary.
+    sql=\
+"insert into hosts(host_id, dhcp_identifier, dhcp_identifier_type) values (18219, '18219', 1); \
+insert into ipv6_reservations (address, prefix_len, type, dhcp6_iaid, host_id) \
+        values ('2601:19e:8100:1e10:b1b:51a8:f616:cf16', 128, 1, 123, 18219);"
+
+    run_statement "insert an ipv6 reservation" "$sql"
+
+    # Let's upgrade it to the latest version.
+    run_command \
+        "${kea_admin}" db-upgrade mysql -u "${db_user}" -p "${db_password}" -n "${db_name}" -d "${db_scripts_dir}"
+
+    # leases count for declined state should be 1 with DUID updated (0x000000)
+    qry="select count(*) from lease6 where address = inet6_aton('2601:19e:8100:1e10:b1b:51a8:f616:cf14');"
+    run_statement "#2" "$qry" 1
+
+    # leases count for non declined state should be 1 with DUID unchanged (0x323033)
+    qry="select count(*) from lease6 where address = inet6_aton('2601:19e:8100:1e10:b1b:51a8:f616:cf15');"
+    run_statement "#3" "$qry" 1
+
+    # verify the reservation is intact
+    qry="select inet6_ntoa(address) from ipv6_reservations where host_id = 18219;"
+    run_statement "ipv6_reservations_insert" "$qry" "2601:19e:8100:1e10:b1b:51a8:f616:cf16"
+
+    # Let's wipe the whole database
+    mysql_wipe
+
+    test_finish 0
+}
+
+# Run tests.
+mysql_db_init_test
+mysql_host_reservation_init_test
+mysql_db_version_test
+mysql_db_version_with_extra_test
+mysql_upgrade_test
+mysql_lease4_dump_test
+mysql_lease4_dump_test -y
+mysql_lease6_dump_test
+mysql_lease6_dump_test -y
+mysql_lease4_upload_test
+mysql_lease4_upload_test -y
+mysql_lease6_upload_test
+mysql_lease6_upload_test -y
+mysql_lease4_stat_test
+mysql_lease6_stat_test
+mysql_lease_stat_upgrade_test
+mysql_lease_stat_recount_test
+mysql_unused_subnet_id_test
+mysql_reservation_mode_upgrade_test
+mysql_client_class_test dhcp4
+mysql_client_class_test dhcp6
+mysql_shrink_server_tag_test
+mysql_update_empty_duid_test
+mysql_update_v6_addresses_to_binary