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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/notnull2.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 '')
-rw-r--r-- | test/notnull2.test | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/test/notnull2.test b/test/notnull2.test new file mode 100644 index 0000000..7f68086 --- /dev/null +++ b/test/notnull2.test @@ -0,0 +1,114 @@ +# 2021 February 15 +# +# 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. +# +#*********************************************************************** +# This file implements regression tests for SQLite library. The +# focus of this file is testing optimizations associated with "IS NULL" +# and "IS NOT NULL" operators on columns with NOT NULL constraints. +# + +set testdir [file dirname $argv0] +source $testdir/tester.tcl +set testprefix notnull2 + +do_execsql_test 1.0 { + CREATE TABLE t1(a, b); + CREATE TABLE t2(c, d NOT NULL); + + WITH x(i) AS ( + SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<1000 + ) + INSERT INTO t1 SELECT i, i FROM x; + INSERT INTO t2 SELECT * FROM t1; +} + + +do_vmstep_test 1.1.1 { + SELECT * FROM t1 LEFT JOIN t2 WHERE a=c AND d IS NULL; +} 100 {} +do_vmstep_test 1.1.2 { + SELECT * FROM t1 LEFT JOIN t2 WHERE a=c AND c IS NULL; +} +1000 {} + +do_vmstep_test 1.2.1 { + SELECT * FROM ( SELECT * FROM t2 ) WHERE d IS NULL +} 100 {} +do_vmstep_test 1.2.2 { + SELECT * FROM ( SELECT * FROM t2 ) WHERE c IS NULL +} +1000 {} + +do_vmstep_test 1.3.1 { + SELECT * FROM t2 WHERE d IS NULL +} 100 {} +do_vmstep_test 1.3.2 { + SELECT * FROM t2 WHERE c IS NULL +} +1000 {} + +do_vmstep_test 1.4.1 { + SELECT (d IS NOT NULL) FROM t2 WHERE 0==( d IS NOT NULL ) +} 100 {} +do_vmstep_test 1.4.2 { + SELECT * FROM t2 WHERE 0==( c IS NOT NULL ) +} +1000 {} + +do_vmstep_test 1.5.1 { + SELECT count(*) FROM t2 WHERE EXISTS( + SELECT t2.d IS NULL FROM t1 WHERE t1.a=450 + ) +} 10000 {1000} +do_vmstep_test 1.5.2 { + SELECT count(*) FROM t2 WHERE EXISTS( + SELECT t2.c IS NULL FROM t1 WHERE t1.a=450 + ) +} +100000 {1000} + +#------------------------------------------------------------------------- +reset_db +do_execsql_test 2.0 { + CREATE TABLE T1(a INTEGER PRIMARY KEY, b); + CREATE TABLE T3(k, v); +} + +do_execsql_test 2.1 { + SELECT * FROM (SELECT a, b FROM t1) LEFT JOIN t3 ON a IS NULL; +} + + + +#------------------------------------------------------------------------- +reset_db +do_execsql_test 3.0 { + CREATE TABLE t0(c0 PRIMARY KEY); + INSERT INTO t0(c0) VALUES (0); +} +do_execsql_test 3.1 { + SELECT * FROM t0 WHERE ((c0 NOT NULL) AND 1) OR (c0 == NULL); +} {0} + +# 2021-07-22 https://sqlite.org/forum/forumpost/2078b7edd2 +# +reset_db +do_execsql_test 4.0 { + SELECT *, '/' + FROM ( + SELECT NULL val FROM (SELECT 1) + UNION ALL + SELECT 'missing' FROM (SELECT 1) + ) a + LEFT JOIN (SELECT 1) + ON a.val IS NULL; +} {{} 1 / missing {} /} +do_execsql_test 4.1 { + CREATE TABLE t1(a INT); + INSERT INTO t1(a) VALUES(1); + CREATE TABLE t2(b INT); + SELECT * FROM (SELECT 3 AS c FROM t1) AS t3 LEFT JOIN t2 ON c IS NULL; +} {3 {}} + +finish_test |