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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
commit | 63847496f14c813a5d80efd5b7de0f1294ffe1e3 (patch) | |
tree | 01c7571c7c762ceee70638549a99834fdd7c411b /test/insert5.test | |
parent | Initial commit. (diff) | |
download | sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.tar.xz sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.zip |
Adding upstream version 3.45.1.upstream/3.45.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/insert5.test')
-rw-r--r-- | test/insert5.test | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/test/insert5.test b/test/insert5.test new file mode 100644 index 0000000..1e58902 --- /dev/null +++ b/test/insert5.test @@ -0,0 +1,117 @@ +# 2007 November 23 +# +# The author disclaims copyright to this source code. In place of +# a legal notice, here is a blessing: +# +# May you do good and not evil. +# May you find forgiveness for yourself and forgive others. +# May you share freely, never taking more than you give. +# +#*********************************************************************** +# +# The tests in this file ensure that a temporary table is used +# when required by an "INSERT INTO ... SELECT ..." statement. +# +# $Id: insert5.test,v 1.5 2008/08/04 03:51:24 danielk1977 Exp $ + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +ifcapable !subquery { + finish_test + return +} + +# Return true if the compilation of the sql passed as an argument +# includes the opcode OpenEphemeral. An "INSERT INTO ... SELECT" +# statement includes such an opcode if a temp-table is used +# to store intermediate results. +# +proc uses_temp_table {sql} { + return [expr {[lsearch [execsql "EXPLAIN $sql"] OpenEphemeral]>=0}] +} + +# Construct the sample database. +# +do_test insert5-1.0 { + forcedelete test2.db test2.db-journal + execsql { + CREATE TABLE MAIN(Id INTEGER, Id1 INTEGER); + CREATE TABLE B(Id INTEGER, Id1 INTEGER); + CREATE VIEW v1 AS SELECT * FROM B; + CREATE VIEW v2 AS SELECT * FROM MAIN; + INSERT INTO MAIN(Id,Id1) VALUES(2,3); + INSERT INTO B(Id,Id1) VALUES(2,3); + } +} {} + +# Run the query. +# +ifcapable compound { + do_test insert5-1.1 { + execsql { + INSERT INTO B + SELECT * FROM B UNION ALL + SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id); + SELECT * FROM B; + } + } {2 3 2 3 2 3} +} else { + do_test insert5-1.1 { + execsql { + INSERT INTO B SELECT * FROM B; + INSERT INTO B + SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id); + SELECT * FROM B; + } + } {2 3 2 3 2 3} +} +do_test insert5-2.1 { + uses_temp_table { INSERT INTO b SELECT * FROM main } +} {0} +do_test insert5-2.2 { + uses_temp_table { INSERT INTO b SELECT * FROM b } +} {1} +do_test insert5-2.3 { + uses_temp_table { INSERT INTO b SELECT (SELECT id FROM b), id1 FROM main } +} {1} +do_test insert5-2.4 { + uses_temp_table { INSERT INTO b SELECT id1, (SELECT id FROM b) FROM main } +} {1} +do_test insert5-2.5 { + uses_temp_table { + INSERT INTO b + SELECT * FROM main WHERE id = (SELECT id1 FROM b WHERE main.id = b.id) } +} {1} +do_test insert5-2.6 { + uses_temp_table { INSERT INTO b SELECT * FROM v1 } +} {1} +do_test insert5-2.7 { + uses_temp_table { INSERT INTO b SELECT * FROM v2 } +} {0} +do_test insert5-2.8 { + uses_temp_table { + INSERT INTO b + SELECT * FROM main WHERE id > 10 AND max(id1, (SELECT id FROM b)) > 10; + } +} {1} + +# UPDATE: Using a column from the outer query (main.id) in the GROUP BY +# or ORDER BY of a sub-query is no longer supported. +# +# do_test insert5-2.9 { +# uses_temp_table { +# INSERT INTO b +# SELECT * FROM main +# WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id) +# } +# } {} +do_test insert5-2.9 { + catchsql { + INSERT INTO b + SELECT * FROM main + WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id) + } +} {1 {no such column: main.id}} + +finish_test |