73 lines
2.3 KiB
Plaintext
73 lines
2.3 KiB
Plaintext
# 2015-03-16
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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 OR expressions where terms can be
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# factored from either side of the OR and combined into a single new
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# AND term that is beneficial to the search. Examples:
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#
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# (x>A OR x=A) --> ... AND (x>=A)
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# (x>A OR (x=A AND y>=B) --> ... AND (x>=A)
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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 whereK
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do_execsql_test 1.1 {
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CREATE TABLE t1(a,b,c);
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WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<99)
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INSERT INTO t1(a,b,c) SELECT x, x/10, x%10 FROM c;
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CREATE INDEX t1bc ON t1(b,c);
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SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a;
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} {90 91 92 93 94 95 96 97 98 99}
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do_execsql_test 1.1eqp {
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EXPLAIN QUERY PLAN
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SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a;
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} {/SEARCH t1 USING INDEX t1bc/}
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do_execsql_test 1.2 {
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SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a;
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} {88 89 90 91 92 93 94 95 96 97 98 99}
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do_execsql_test 1.2eqp {
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EXPLAIN QUERY PLAN
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SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a;
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} {/SEARCH t1 USING INDEX t1bc/}
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do_execsql_test 1.3 {
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SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a;
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} {88 89 90 91 92 93 94 95 96 97 98 99}
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do_execsql_test 1.3eqp {
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EXPLAIN QUERY PLAN
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SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a;
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} {/SEARCH t1 USING INDEX t1bc/}
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do_execsql_test 1.4 {
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SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a;
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} {88 89 90 91 92 93 94 95 96 97 98 99}
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do_execsql_test 1.4eqp {
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EXPLAIN QUERY PLAN
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SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a;
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} {/SEARCH t1 USING INDEX t1bc/}
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do_execsql_test 1.5 {
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SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6))
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ORDER BY +a;
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} {88 89 90 91 92 93 97 98 99}
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do_execsql_test 1.5eqp {
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EXPLAIN QUERY PLAN
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SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6))
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ORDER BY +a;
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} {/SEARCH t1 USING INDEX t1bc/}
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finish_test
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