| # 2017 April 29 |
| # |
| # 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. |
| # |
| #*********************************************************************** |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| set testprefix pushdown |
| |
| do_execsql_test 1.0 { |
| CREATE TABLE t1(a, b, c); |
| INSERT INTO t1 VALUES(1, 'b1', 'c1'); |
| INSERT INTO t1 VALUES(2, 'b2', 'c2'); |
| INSERT INTO t1 VALUES(3, 'b3', 'c3'); |
| INSERT INTO t1 VALUES(4, 'b4', 'c4'); |
| CREATE INDEX i1 ON t1(a, c); |
| } |
| |
| proc f {val} { |
| lappend ::L $val |
| return 0 |
| } |
| db func f f |
| |
| do_test 1.1 { |
| set L [list] |
| execsql { SELECT * FROM t1 WHERE a=2 AND f(b) AND f(c) } |
| set L |
| } {c2} |
| |
| do_test 1.2 { |
| set L [list] |
| execsql { SELECT * FROM t1 WHERE a=3 AND f(c) AND f(b) } |
| set L |
| } {c3} |
| |
| do_execsql_test 1.3 { |
| DROP INDEX i1; |
| CREATE INDEX i1 ON t1(a, b); |
| } |
| do_test 1.4 { |
| set L [list] |
| execsql { SELECT * FROM t1 WHERE a=2 AND f(b) AND f(c) } |
| set L |
| } {b2} |
| |
| do_test 1.5 { |
| set L [list] |
| execsql { SELECT * FROM t1 WHERE a=3 AND f(c) AND f(b) } |
| set L |
| } {b3} |
| |
| #----------------------------------------------- |
| |
| do_execsql_test 2.0 { |
| CREATE TABLE u1(a, b, c); |
| CREATE TABLE u2(x, y, z); |
| |
| INSERT INTO u1 VALUES('a1', 'b1', 'c1'); |
| INSERT INTO u2 VALUES('a1', 'b1', 'c1'); |
| } |
| |
| do_test 2.1 { |
| set L [list] |
| execsql { |
| SELECT * FROM u1 WHERE f('one')=123 AND 123=( |
| SELECT x FROM u2 WHERE x=a AND f('two') |
| ) |
| } |
| set L |
| } {one} |
| |
| do_test 2.2 { |
| set L [list] |
| execsql { |
| SELECT * FROM u1 WHERE 123=( |
| SELECT x FROM u2 WHERE x=a AND f('two') |
| ) AND f('three')=123 |
| } |
| set L |
| } {three} |
| |
| |
| |
| finish_test |