394 lines
10 KiB
Plaintext
394 lines
10 KiB
Plaintext
# 2013-07-31
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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 partial indices
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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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ifcapable !vtab {
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finish_test
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return
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}
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load_static_extension db wholenumber;
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do_test index6-1.1 {
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# Able to parse and manage partial indices
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execsql {
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CREATE TABLE t1(a,b,c);
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CREATE INDEX t1a ON t1(a) WHERE a IS NOT NULL;
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CREATE INDEX t1b ON t1(b) WHERE b>10;
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CREATE VIRTUAL TABLE nums USING wholenumber;
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INSERT INTO t1(a,b,c)
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SELECT CASE WHEN value%3!=0 THEN value END, value, value
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FROM nums WHERE value<=20;
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SELECT count(a), count(b) FROM t1;
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PRAGMA integrity_check;
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}
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} {14 20 ok}
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# Make sure the count(*) optimization works correctly with
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# partial indices. Ticket [a5c8ed66cae16243be6] 2013-10-03.
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#
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do_execsql_test index6-1.1.1 {
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SELECT count(*) FROM t1;
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} {20}
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# Error conditions during parsing...
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#
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do_test index6-1.2 {
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catchsql {
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CREATE INDEX bad1 ON t1(a,b) WHERE x IS NOT NULL;
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}
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} {1 {no such column: x}}
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do_test index6-1.3 {
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catchsql {
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CREATE INDEX bad1 ON t1(a,b) WHERE EXISTS(SELECT * FROM t1);
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}
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} {1 {subqueries prohibited in partial index WHERE clauses}}
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do_test index6-1.4 {
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catchsql {
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CREATE INDEX bad1 ON t1(a,b) WHERE a!=?1;
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}
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} {1 {parameters prohibited in partial index WHERE clauses}}
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do_test index6-1.5 {
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catchsql {
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CREATE INDEX bad1 ON t1(a,b) WHERE a!=random();
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}
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} {1 {non-deterministic functions prohibited in partial index WHERE clauses}}
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do_test index6-1.6 {
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catchsql {
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CREATE INDEX bad1 ON t1(a,b) WHERE a NOT LIKE 'abc%';
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}
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} {0 {}}
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do_execsql_test index6-1.7 {
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DROP INDEX IF EXISTS bad1;
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}
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do_test index6-1.10 {
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execsql {
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ANALYZE;
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SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
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PRAGMA integrity_check;
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}
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} {{} 20 t1a {14 1} t1b {10 1} ok}
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# STAT1 shows the partial indices have a reduced number of
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# rows.
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#
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do_test index6-1.11 {
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execsql {
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UPDATE t1 SET a=b;
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ANALYZE;
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SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
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PRAGMA integrity_check;
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}
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} {{} 20 t1a {20 1} t1b {10 1} ok}
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do_test index6-1.11 {
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execsql {
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UPDATE t1 SET a=NULL WHERE b%3!=0;
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UPDATE t1 SET b=b+100;
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ANALYZE;
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SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
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PRAGMA integrity_check;
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}
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} {{} 20 t1a {6 1} t1b {20 1} ok}
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do_test index6-1.12 {
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execsql {
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UPDATE t1 SET a=CASE WHEN b%3!=0 THEN b END;
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UPDATE t1 SET b=b-100;
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ANALYZE;
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SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
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PRAGMA integrity_check;
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}
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} {{} 20 t1a {13 1} t1b {10 1} ok}
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do_test index6-1.13 {
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execsql {
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DELETE FROM t1 WHERE b BETWEEN 8 AND 12;
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ANALYZE;
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SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
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PRAGMA integrity_check;
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}
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} {{} 15 t1a {10 1} t1b {8 1} ok}
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do_test index6-1.14 {
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execsql {
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REINDEX;
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ANALYZE;
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SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
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PRAGMA integrity_check;
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}
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} {{} 15 t1a {10 1} t1b {8 1} ok}
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do_test index6-1.15 {
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execsql {
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CREATE INDEX t1c ON t1(c);
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ANALYZE;
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SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
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PRAGMA integrity_check;
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}
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} {t1a {10 1} t1b {8 1} t1c {15 1} ok}
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# Queries use partial indices as appropriate times.
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#
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do_test index6-2.1 {
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execsql {
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CREATE TABLE t2(a,b);
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INSERT INTO t2(a,b) SELECT value, value FROM nums WHERE value<1000;
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UPDATE t2 SET a=NULL WHERE b%2==0;
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CREATE INDEX t2a1 ON t2(a) WHERE a IS NOT NULL;
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SELECT count(*) FROM t2 WHERE a IS NOT NULL;
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}
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} {500}
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do_test index6-2.2 {
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execsql {
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EXPLAIN QUERY PLAN
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SELECT * FROM t2 WHERE a=5;
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}
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} {/.* TABLE t2 USING INDEX t2a1 .*/}
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ifcapable stat4||stat3 {
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execsql ANALYZE
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do_test index6-2.3stat4 {
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execsql {
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EXPLAIN QUERY PLAN
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SELECT * FROM t2 WHERE a IS NOT NULL;
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}
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} {/.* TABLE t2 USING INDEX t2a1 .*/}
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} else {
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do_test index6-2.3stat4 {
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execsql {
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EXPLAIN QUERY PLAN
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SELECT * FROM t2 WHERE a IS NOT NULL AND a>0;
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}
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} {/.* TABLE t2 USING INDEX t2a1 .*/}
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}
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do_test index6-2.4 {
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execsql {
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EXPLAIN QUERY PLAN
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SELECT * FROM t2 WHERE a IS NULL;
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}
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} {~/.*INDEX t2a1.*/}
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do_execsql_test index6-2.101 {
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DROP INDEX t2a1;
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UPDATE t2 SET a=b, b=b+10000;
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SELECT b FROM t2 WHERE a=15;
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} {10015}
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do_execsql_test index6-2.102 {
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CREATE INDEX t2a2 ON t2(a) WHERE a<100 OR a>200;
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SELECT b FROM t2 WHERE a=15;
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PRAGMA integrity_check;
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} {10015 ok}
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do_execsql_test index6-2.102eqp {
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EXPLAIN QUERY PLAN
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SELECT b FROM t2 WHERE a=15;
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} {~/.*INDEX t2a2.*/}
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do_execsql_test index6-2.103 {
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SELECT b FROM t2 WHERE a=15 AND a<100;
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} {10015}
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do_execsql_test index6-2.103eqp {
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EXPLAIN QUERY PLAN
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SELECT b FROM t2 WHERE a=15 AND a<100;
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} {/.*INDEX t2a2.*/}
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do_execsql_test index6-2.104 {
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SELECT b FROM t2 WHERE a=515 AND a>200;
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} {10515}
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do_execsql_test index6-2.104eqp {
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EXPLAIN QUERY PLAN
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SELECT b FROM t2 WHERE a=515 AND a>200;
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} {/.*INDEX t2a2.*/}
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# Partial UNIQUE indices
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#
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do_execsql_test index6-3.1 {
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CREATE TABLE t3(a,b);
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INSERT INTO t3 SELECT value, value FROM nums WHERE value<200;
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UPDATE t3 SET a=999 WHERE b%5!=0;
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CREATE UNIQUE INDEX t3a ON t3(a) WHERE a<>999;
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} {}
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do_test index6-3.2 {
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# unable to insert a duplicate row a-value that is not 999.
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catchsql {
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INSERT INTO t3(a,b) VALUES(150, 'test1');
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}
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} {1 {UNIQUE constraint failed: t3.a}}
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do_test index6-3.3 {
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# can insert multiple rows with a==999 because such rows are not
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# part of the unique index.
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catchsql {
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INSERT INTO t3(a,b) VALUES(999, 'test1'), (999, 'test2');
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}
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} {0 {}}
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do_execsql_test index6-3.4 {
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SELECT count(*) FROM t3 WHERE a=999;
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} {162}
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integrity_check index6-3.5
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do_execsql_test index6-4.0 {
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VACUUM;
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PRAGMA integrity_check;
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} {ok}
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# Silently ignore database name qualifiers in partial indices.
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#
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do_execsql_test index6-5.0 {
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CREATE INDEX t3b ON t3(b) WHERE xyzzy.t3.b BETWEEN 5 AND 10;
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/* ^^^^^-- ignored */
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ANALYZE;
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SELECT count(*) FROM t3 WHERE t3.b BETWEEN 5 AND 10;
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SELECT stat+0 FROM sqlite_stat1 WHERE idx='t3b';
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} {6 6}
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# Test case for ticket [2ea3e9fe6379fc3f6ce7e090ce483c1a3a80d6c9] from
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# 2014-04-13: Partial index causes assertion fault on UPDATE OR REPLACE.
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#
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do_execsql_test index6-6.0 {
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CREATE TABLE t6(a,b);
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CREATE UNIQUE INDEX t6ab ON t1(a,b);
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CREATE INDEX t6b ON t6(b) WHERE b=1;
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INSERT INTO t6(a,b) VALUES(123,456);
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SELECT * FROM t6;
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} {123 456}
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do_execsql_test index6-6.1 {
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UPDATE OR REPLACE t6 SET b=789;
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SELECT * FROM t6;
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} {123 789}
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do_execsql_test index6-6.2 {
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PRAGMA integrity_check;
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} {ok}
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# Test case for ticket [2326c258d02ead33d69faa63de8f4686b9b1b9d9] on
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# 2015-02-24. Any use of a partial index qualifying constraint inside
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# the ON clause of a LEFT JOIN was causing incorrect results for all
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# versions of SQLite 3.8.0 through 3.8.8.
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#
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do_execsql_test index6-7.0 {
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CREATE TABLE t7a(x);
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CREATE TABLE t7b(y);
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INSERT INTO t7a(x) VALUES(1);
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CREATE INDEX t7ax ON t7a(x) WHERE x=99;
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PRAGMA automatic_index=OFF;
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SELECT * FROM t7a LEFT JOIN t7b ON (x=99) ORDER BY x;
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} {1 {}}
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do_execsql_test index6-7.1 {
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INSERT INTO t7b(y) VALUES(2);
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SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
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} {}
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do_execsql_test index6-7.2 {
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INSERT INTO t7a(x) VALUES(99);
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SELECT * FROM t7a LEFT JOIN t7b ON (x=99) ORDER BY x;
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} {1 {} 99 2}
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do_execsql_test index6-7.3 {
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SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
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} {99 2}
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do_execsql_test index6-7.4 {
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EXPLAIN QUERY PLAN
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SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
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} {/USING COVERING INDEX t7ax/}
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do_execsql_test index6-8.0 {
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CREATE TABLE t8a(a,b);
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CREATE TABLE t8b(x,y);
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CREATE INDEX i8c ON t8b(y) WHERE x = 'value';
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INSERT INTO t8a VALUES(1, 'one');
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INSERT INTO t8a VALUES(2, 'two');
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INSERT INTO t8a VALUES(3, 'three');
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INSERT INTO t8b VALUES('value', 1);
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INSERT INTO t8b VALUES('dummy', 2);
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INSERT INTO t8b VALUES('value', 3);
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INSERT INTO t8b VALUES('dummy', 4);
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} {}
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do_eqp_test index6-8.1 {
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SELECT * FROM t8a LEFT JOIN t8b ON (x = 'value' AND y = a)
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} {
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0 0 0 {SCAN TABLE t8a}
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0 1 1 {SEARCH TABLE t8b USING INDEX i8c (y=?)}
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}
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do_execsql_test index6-8.2 {
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SELECT * FROM t8a LEFT JOIN t8b ON (x = 'value' AND y = a)
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} {
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1 one value 1
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2 two {} {}
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3 three value 3
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}
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# 2015-06-11. Assertion fault found by AFL
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#
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do_execsql_test index6-9.1 {
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CREATE TABLE t9(a int, b int, c int);
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CREATE INDEX t9ca ON t9(c,a) WHERE a in (10,12,20);
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INSERT INTO t9 VALUES(1,1,9),(10,2,35),(11,15,82),(20,19,5),(NULL,7,3);
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UPDATE t9 SET b=c WHERE a in (10,12,20);
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SELECT a,b,c,'|' FROM t9 ORDER BY a;
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} {{} 7 3 | 1 1 9 | 10 35 35 | 11 15 82 | 20 5 5 |}
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do_execsql_test index6-9.2 {
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DROP TABLE t9;
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CREATE TABLE t9(a int, b int, c int, PRIMARY KEY(a)) WITHOUT ROWID;
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CREATE INDEX t9ca ON t9(c,a) WHERE a in (10,12,20);
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INSERT INTO t9 VALUES(1,1,9),(10,2,35),(11,15,82),(20,19,5);
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UPDATE t9 SET b=c WHERE a in (10,12,20);
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SELECT a,b,c,'|' FROM t9 ORDER BY a;
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} {1 1 9 | 10 35 35 | 11 15 82 | 20 5 5 |}
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# AND-connected terms in the WHERE clause of a partial index
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#
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do_execsql_test index6-10.1 {
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CREATE TABLE t10(a,b,c,d,e INTEGER PRIMARY KEY);
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INSERT INTO t10 VALUES
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(1,2,3,4,5),
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(2,3,4,5,6),
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(3,4,5,6,7),
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(1,2,3,8,9);
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CREATE INDEX t10x ON t10(d) WHERE a=1 AND b=2 AND c=3;
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SELECT e FROM t10 WHERE a=1 AND b=2 AND c=3 ORDER BY d;
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} {5 9}
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do_execsql_test index6-10.1eqp {
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EXPLAIN QUERY PLAN
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SELECT e FROM t10 WHERE a=1 AND b=2 AND c=3 ORDER BY d;
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} {/USING INDEX t10x/}
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do_execsql_test index6-10.2 {
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SELECT e FROM t10 WHERE c=3 AND 2=b AND a=1 ORDER BY d DESC;
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} {9 5}
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do_execsql_test index6-10.2eqp {
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EXPLAIN QUERY PLAN
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SELECT e FROM t10 WHERE c=3 AND 2=b AND a=1 ORDER BY d DESC;
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} {/USING INDEX t10x/}
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do_execsql_test index6-10.3 {
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SELECT e FROM t10 WHERE a=1 AND b=2 ORDER BY d DESC;
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} {9 5}
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do_execsql_test index6-10.3eqp {
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EXPLAIN QUERY PLAN
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SELECT e FROM t10 WHERE a=1 AND b=2 ORDER BY d DESC;
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} {~/USING INDEX t10x/}
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# A partial index will be used for a full table scan, where possible
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do_execsql_test index6-11.1 {
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CREATE TABLE t11(a,b,c);
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CREATE INDEX t11x ON t11(a) WHERE b<>99;
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EXPLAIN QUERY PLAN SELECT a FROM t11 WHERE b<>99;
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} {/USING INDEX t11x/}
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do_execsql_test index6-11.2 {
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EXPLAIN QUERY PLAN SELECT a FROM t11 WHERE b<>99 AND c<>98;
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} {/USING INDEX t11x/}
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finish_test
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