92 lines
1.8 KiB
Plaintext
92 lines
1.8 KiB
Plaintext
# 2017 April 29
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix pushdown
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do_execsql_test 1.0 {
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CREATE TABLE t1(a, b, c);
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INSERT INTO t1 VALUES(1, 'b1', 'c1');
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INSERT INTO t1 VALUES(2, 'b2', 'c2');
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INSERT INTO t1 VALUES(3, 'b3', 'c3');
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INSERT INTO t1 VALUES(4, 'b4', 'c4');
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CREATE INDEX i1 ON t1(a, c);
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}
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proc f {val} {
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lappend ::L $val
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return 0
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}
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db func f f
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do_test 1.1 {
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set L [list]
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execsql { SELECT * FROM t1 WHERE a=2 AND f(b) AND f(c) }
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set L
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} {c2}
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do_test 1.2 {
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set L [list]
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execsql { SELECT * FROM t1 WHERE a=3 AND f(c) AND f(b) }
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set L
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} {c3}
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do_execsql_test 1.3 {
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DROP INDEX i1;
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CREATE INDEX i1 ON t1(a, b);
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}
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do_test 1.4 {
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set L [list]
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execsql { SELECT * FROM t1 WHERE a=2 AND f(b) AND f(c) }
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set L
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} {b2}
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do_test 1.5 {
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set L [list]
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execsql { SELECT * FROM t1 WHERE a=3 AND f(c) AND f(b) }
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set L
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} {b3}
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#-----------------------------------------------
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do_execsql_test 2.0 {
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CREATE TABLE u1(a, b, c);
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CREATE TABLE u2(x, y, z);
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INSERT INTO u1 VALUES('a1', 'b1', 'c1');
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INSERT INTO u2 VALUES('a1', 'b1', 'c1');
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}
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do_test 2.1 {
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set L [list]
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execsql {
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SELECT * FROM u1 WHERE f('one')=123 AND 123=(
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SELECT x FROM u2 WHERE x=a AND f('two')
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)
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}
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set L
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} {one}
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do_test 2.2 {
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set L [list]
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execsql {
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SELECT * FROM u1 WHERE 123=(
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SELECT x FROM u2 WHERE x=a AND f('two')
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) AND f('three')=123
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}
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set L
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} {three}
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finish_test
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