140 lines
3.9 KiB
Plaintext
140 lines
3.9 KiB
Plaintext
# 2014-03-31
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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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#
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# Test cases for query planning decisions where one candidate index
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# covers a proper superset of the WHERE clause terms of another
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# candidate index.
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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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do_execsql_test whereH-1.1 {
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CREATE TABLE t1(a,b,c,d);
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CREATE INDEX t1abc ON t1(a,b,c);
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CREATE INDEX t1bc ON t1(b,c);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
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} {/INDEX t1abc /}
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do_execsql_test whereH-1.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
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} {~/TEMP B-TREE FOR ORDER BY/}
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do_execsql_test whereH-2.1 {
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DROP TABLE t1;
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CREATE TABLE t1(a,b,c,d);
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CREATE INDEX t1bc ON t1(b,c);
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CREATE INDEX t1abc ON t1(a,b,c);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
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} {/INDEX t1abc /}
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do_execsql_test whereH-2.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
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} {~/TEMP B-TREE FOR ORDER BY/}
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do_execsql_test whereH-3.1 {
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DROP TABLE t1;
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CREATE TABLE t1(a,b,c,d,e);
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CREATE INDEX t1cd ON t1(c,d);
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CREATE INDEX t1bcd ON t1(b,c,d);
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CREATE INDEX t1abcd ON t1(a,b,c,d);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {/INDEX t1abcd /}
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do_execsql_test whereH-3.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {~/TEMP B-TREE FOR ORDER BY/}
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do_execsql_test whereH-4.1 {
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DROP TABLE t1;
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CREATE TABLE t1(a,b,c,d,e);
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CREATE INDEX t1cd ON t1(c,d);
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CREATE INDEX t1abcd ON t1(a,b,c,d);
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CREATE INDEX t1bcd ON t1(b,c,d);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {/INDEX t1abcd /}
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do_execsql_test whereH-4.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {~/TEMP B-TREE FOR ORDER BY/}
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do_execsql_test whereH-5.1 {
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DROP TABLE t1;
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CREATE TABLE t1(a,b,c,d,e);
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CREATE INDEX t1bcd ON t1(b,c,d);
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CREATE INDEX t1cd ON t1(c,d);
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CREATE INDEX t1abcd ON t1(a,b,c,d);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {/INDEX t1abcd /}
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do_execsql_test whereH-5.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {~/TEMP B-TREE FOR ORDER BY/}
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do_execsql_test whereH-6.1 {
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DROP TABLE t1;
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CREATE TABLE t1(a,b,c,d,e);
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CREATE INDEX t1bcd ON t1(b,c,d);
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CREATE INDEX t1abcd ON t1(a,b,c,d);
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CREATE INDEX t1cd ON t1(c,d);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {/INDEX t1abcd /}
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do_execsql_test whereH-6.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {~/TEMP B-TREE FOR ORDER BY/}
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do_execsql_test whereH-7.1 {
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DROP TABLE t1;
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CREATE TABLE t1(a,b,c,d,e);
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CREATE INDEX t1abcd ON t1(a,b,c,d);
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CREATE INDEX t1bcd ON t1(b,c,d);
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CREATE INDEX t1cd ON t1(c,d);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {/INDEX t1abcd /}
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do_execsql_test whereH-7.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {~/TEMP B-TREE FOR ORDER BY/}
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do_execsql_test whereH-8.1 {
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DROP TABLE t1;
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CREATE TABLE t1(a,b,c,d,e);
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CREATE INDEX t1abcd ON t1(a,b,c,d);
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CREATE INDEX t1cd ON t1(c,d);
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CREATE INDEX t1bcd ON t1(b,c,d);
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {/INDEX t1abcd /}
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do_execsql_test whereH-8.2 {
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EXPLAIN QUERY PLAN
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SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
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} {~/TEMP B-TREE FOR ORDER BY/}
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finish_test
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