122 lines
2.5 KiB
Plaintext
122 lines
2.5 KiB
Plaintext
# 2024-10-05
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is testing indexes on expressions.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix indexexpr3
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do_execsql_test 1.0 {
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CREATE TABLE t1(a, j);
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INSERT INTO t1 VALUES(1, '{x:"one"}');
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INSERT INTO t1 VALUES(2, '{x:"two"}');
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INSERT INTO t1 VALUES(3, '{x:"three"}');
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CREATE INDEX i1 ON t1( json_extract(j, '$.x') );
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CREATE INDEX i2 ON t1( a, json_extract(j, '$.x') );
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}
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proc do_hasfunction_test {tn sql res} {
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set nFunction 0
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db eval "EXPLAIN $sql" x {
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if {$x(opcode)=="Function"} {
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incr nFunction
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}
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}
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do_execsql_test $tn "
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SELECT $nFunction;
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$sql
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" $res
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}
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do_hasfunction_test 1.1 {
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SELECT json_extract(j, '$.x') FROM t1 ORDER BY 1;
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} {
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0 one three two
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}
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do_hasfunction_test 1.2 {
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SELECT json_extract(j, '$.x') FROM t1 WHERE a=2
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} {
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0 two
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}
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do_hasfunction_test 1.3 {
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SELECT coalesce(json_extract(j, '$.x'), 'five') FROM t1 WHERE a=2
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} {
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0 two
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}
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do_hasfunction_test 1.4 {
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SELECT json_extract(j, '$.x') || '.two' FROM t1 WHERE a=2
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} {
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0 two.two
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}
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do_hasfunction_test 1.5 {
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SELECT json_insert( '{}', '$.y', json_extract(j, '$.x') ) FROM t1 WHERE a=2
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} {
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2 {{"y":"two"}}
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}
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do_hasfunction_test 1.6 {
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SELECT json_insert( '{}', '$.y', coalesce( json_extract(j, '$.x'), 'five' ) )
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FROM t1 WHERE a=2
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} {
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2 {{"y":"two"}}
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}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 2.0 {
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CREATE TABLE t1(a, b, j);
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CREATE INDEX i1 ON t1( a, json_extract(j, '$.x') );
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}
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do_eqp_test 2.1 {
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SELECT json_extract(j, '$.x') FROM t1 WHERE a=?
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} {
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t1 USING COVERING INDEX i1
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}
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do_eqp_test 2.2 {
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SELECT b, json_extract(j, '$.x') FROM t1 WHERE a=?
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} {
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t1 USING INDEX i1
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}
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do_eqp_test 2.3 {
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SELECT json_insert( '{}', json_extract(j, '$.x') ) FROM t1 WHERE a=?
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} {
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t1 USING INDEX i1
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}
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do_eqp_test 2.4 {
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SELECT sum( json_extract(j, '$.x') ) FROM t1 WHERE a=?
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} {
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t1 USING COVERING INDEX i1
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}
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do_eqp_test 2.5 {
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SELECT json_extract(j, '$.x'), sum( json_extract(j, '$.x') ) FROM t1 WHERE a=?
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} {
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t1 USING INDEX i1
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}
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finish_test
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