5e377d90ed
incomplete ANALYZE does not trick the planner into use a table that might be indexable in an inner loop. Ticket [13f033c865f878] FossilOrigin-Name: e7a714b52c45af096af74049826d32c647abfe3f
265 lines
8.2 KiB
Plaintext
265 lines
8.2 KiB
Plaintext
# 2008 October 4
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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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# $Id: indexedby.test,v 1.5 2009/03/22 20:36:19 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Create a schema with some indexes.
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#
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do_test indexedby-1.1 {
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execsql {
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CREATE TABLE t1(a, b);
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CREATE INDEX i1 ON t1(a);
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CREATE INDEX i2 ON t1(b);
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CREATE TABLE t2(c, d);
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CREATE INDEX i3 ON t2(c);
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CREATE INDEX i4 ON t2(d);
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CREATE TABLE t3(e PRIMARY KEY, f);
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CREATE VIEW v1 AS SELECT * FROM t1;
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}
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} {}
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# Explain Query Plan
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#
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proc EQP {sql} {
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uplevel "execsql {EXPLAIN QUERY PLAN $sql}"
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}
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# These tests are to check that "EXPLAIN QUERY PLAN" is working as expected.
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#
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do_test indexedby-1.2 {
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EQP { select * from t1 WHERE a = 10; }
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-1.3 {
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EQP { select * from t1 ; }
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} {0 0 {TABLE t1}}
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do_test indexedby-1.4 {
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EQP { select * from t1, t2 WHERE c = 10; }
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} {0 1 {TABLE t2 WITH INDEX i3} 1 0 {TABLE t1}}
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# Parser tests. Test that an INDEXED BY or NOT INDEX clause can be
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# attached to a table in the FROM clause, but not to a sub-select or
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# SQL view. Also test that specifying an index that does not exist or
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# is attached to a different table is detected as an error.
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#
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do_test indexedby-2.1 {
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execsql { SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'}
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} {}
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do_test indexedby-2.2 {
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execsql { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'}
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} {}
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do_test indexedby-2.3 {
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execsql { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' AND b = 'two'}
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} {}
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do_test indexedby-2.4 {
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catchsql { SELECT * FROM t1 INDEXED BY i3 WHERE a = 'one' AND b = 'two'}
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} {1 {no such index: i3}}
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do_test indexedby-2.5 {
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catchsql { SELECT * FROM t1 INDEXED BY i5 WHERE a = 'one' AND b = 'two'}
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} {1 {no such index: i5}}
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do_test indexedby-2.6 {
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catchsql { SELECT * FROM t1 INDEXED BY WHERE a = 'one' AND b = 'two'}
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} {1 {near "WHERE": syntax error}}
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do_test indexedby-2.7 {
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catchsql { SELECT * FROM v1 INDEXED BY i1 WHERE a = 'one' }
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} {1 {no such index: i1}}
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# Tests for single table cases.
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#
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do_test indexedby-3.1 {
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EQP { SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'}
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} {0 0 {TABLE t1}}
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do_test indexedby-3.2 {
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EQP { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'}
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-3.3 {
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EQP { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' AND b = 'two'}
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} {0 0 {TABLE t1 WITH INDEX i2}}
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do_test indexedby-3.4 {
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catchsql { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' }
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} {1 {cannot use index: i2}}
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do_test indexedby-3.5 {
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catchsql { SELECT * FROM t1 INDEXED BY i2 ORDER BY a }
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} {1 {cannot use index: i2}}
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do_test indexedby-3.6 {
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catchsql { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' }
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} {0 {}}
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do_test indexedby-3.7 {
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catchsql { SELECT * FROM t1 INDEXED BY i1 ORDER BY a }
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} {0 {}}
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do_test indexedby-3.8 {
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EQP { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 ORDER BY e }
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} {0 0 {TABLE t3 WITH INDEX sqlite_autoindex_t3_1 ORDER BY}}
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do_test indexedby-3.9 {
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EQP { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 WHERE e = 10 }
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} {0 0 {TABLE t3 WITH INDEX sqlite_autoindex_t3_1}}
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do_test indexedby-3.10 {
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catchsql { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 WHERE f = 10 }
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} {1 {cannot use index: sqlite_autoindex_t3_1}}
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do_test indexedby-3.11 {
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catchsql { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_2 WHERE f = 10 }
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} {1 {no such index: sqlite_autoindex_t3_2}}
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# Tests for multiple table cases.
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#
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do_test indexedby-4.1 {
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EQP { SELECT * FROM t1, t2 WHERE a = c }
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} {0 0 {TABLE t1} 1 1 {TABLE t2 WITH INDEX i3}}
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do_test indexedby-4.2 {
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EQP { SELECT * FROM t1 INDEXED BY i1, t2 WHERE a = c }
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} {0 1 {TABLE t2} 1 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-4.3 {
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catchsql {
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SELECT * FROM t1 INDEXED BY i1, t2 INDEXED BY i3 WHERE a=c
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}
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} {1 {cannot use index: i1}}
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do_test indexedby-4.4 {
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catchsql {
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SELECT * FROM t2 INDEXED BY i3, t1 INDEXED BY i1 WHERE a=c
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}
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} {1 {cannot use index: i3}}
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# Test embedding an INDEXED BY in a CREATE VIEW statement. This block
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# also tests that nothing bad happens if an index refered to by
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# a CREATE VIEW statement is dropped and recreated.
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#
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do_test indexedby-5.1 {
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execsql {
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CREATE VIEW v2 AS SELECT * FROM t1 INDEXED BY i1 WHERE a > 5;
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}
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EQP { SELECT * FROM v2 }
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-5.2 {
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EQP { SELECT * FROM v2 WHERE b = 10 }
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-5.3 {
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execsql { DROP INDEX i1 }
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catchsql { SELECT * FROM v2 }
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} {1 {no such index: i1}}
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do_test indexedby-5.4 {
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# Recreate index i1 in such a way as it cannot be used by the view query.
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execsql { CREATE INDEX i1 ON t1(b) }
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catchsql { SELECT * FROM v2 }
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} {1 {cannot use index: i1}}
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do_test indexedby-5.5 {
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# Drop and recreate index i1 again. This time, create it so that it can
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# be used by the query.
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execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t1(a) }
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catchsql { SELECT * FROM v2 }
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} {0 {}}
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# Test that "NOT INDEXED" may use the rowid index, but not others.
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#
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do_test indexedby-6.1 {
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EQP { SELECT * FROM t1 WHERE b = 10 ORDER BY rowid }
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} {0 0 {TABLE t1 WITH INDEX i2 ORDER BY}}
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do_test indexedby-6.2 {
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EQP { SELECT * FROM t1 NOT INDEXED WHERE b = 10 ORDER BY rowid }
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} {0 0 {TABLE t1 USING PRIMARY KEY ORDER BY}}
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# Test that "INDEXED BY" can be used in a DELETE statement.
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#
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do_test indexedby-7.1 {
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EQP { DELETE FROM t1 WHERE a = 5 }
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-7.2 {
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EQP { DELETE FROM t1 NOT INDEXED WHERE a = 5 }
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} {0 0 {TABLE t1}}
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do_test indexedby-7.3 {
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EQP { DELETE FROM t1 INDEXED BY i1 WHERE a = 5 }
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-7.4 {
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EQP { DELETE FROM t1 INDEXED BY i1 WHERE a = 5 AND b = 10}
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-7.5 {
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EQP { DELETE FROM t1 INDEXED BY i2 WHERE a = 5 AND b = 10}
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} {0 0 {TABLE t1 WITH INDEX i2}}
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do_test indexedby-7.6 {
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catchsql { DELETE FROM t1 INDEXED BY i2 WHERE a = 5}
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} {1 {cannot use index: i2}}
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# Test that "INDEXED BY" can be used in an UPDATE statement.
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#
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do_test indexedby-8.1 {
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EQP { UPDATE t1 SET rowid=rowid+1 WHERE a = 5 }
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-8.2 {
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EQP { UPDATE t1 NOT INDEXED SET rowid=rowid+1 WHERE a = 5 }
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} {0 0 {TABLE t1}}
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do_test indexedby-8.3 {
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EQP { UPDATE t1 INDEXED BY i1 SET rowid=rowid+1 WHERE a = 5 }
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-8.4 {
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EQP { UPDATE t1 INDEXED BY i1 SET rowid=rowid+1 WHERE a = 5 AND b = 10}
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} {0 0 {TABLE t1 WITH INDEX i1}}
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do_test indexedby-8.5 {
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EQP { UPDATE t1 INDEXED BY i2 SET rowid=rowid+1 WHERE a = 5 AND b = 10}
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} {0 0 {TABLE t1 WITH INDEX i2}}
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do_test indexedby-8.6 {
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catchsql { UPDATE t1 INDEXED BY i2 SET rowid=rowid+1 WHERE a = 5}
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} {1 {cannot use index: i2}}
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# Test that bug #3560 is fixed.
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#
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do_test indexedby-9.1 {
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execsql {
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CREATE TABLE maintable( id integer);
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CREATE TABLE joinme(id_int integer, id_text text);
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CREATE INDEX joinme_id_text_idx on joinme(id_text);
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CREATE INDEX joinme_id_int_idx on joinme(id_int);
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}
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} {}
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do_test indexedby-9.2 {
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catchsql {
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select * from maintable as m inner join
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joinme as j indexed by joinme_id_text_idx
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on ( m.id = j.id_int)
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}
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} {1 {cannot use index: joinme_id_text_idx}}
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do_test indexedby-9.3 {
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catchsql { select * from maintable, joinme INDEXED by joinme_id_text_idx }
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} {1 {cannot use index: joinme_id_text_idx}}
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# Make sure we can still create tables, indices, and columns whose name
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# is "indexed".
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#
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do_test indexedby-10.1 {
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execsql {
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CREATE TABLE indexed(x,y);
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INSERT INTO indexed VALUES(1,2);
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SELECT * FROM indexed;
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}
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} {1 2}
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do_test indexedby-10.2 {
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execsql {
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CREATE INDEX i10 ON indexed(x);
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SELECT * FROM indexed indexed by i10 where x>0;
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}
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} {1 2}
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do_test indexedby-10.3 {
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execsql {
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DROP TABLE indexed;
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CREATE TABLE t10(indexed INTEGER);
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INSERT INTO t10 VALUES(1);
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CREATE INDEX indexed ON t10(indexed);
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SELECT * FROM t10 indexed by indexed WHERE indexed>0
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}
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} {1}
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finish_test
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