mirror of
https://gitlab.com/cznic/sqlite.git
synced 2024-11-24 02:26:14 +00:00
252 lines
6.1 KiB
Plaintext
252 lines
6.1 KiB
Plaintext
# 2009-02-24
|
|
#
|
|
# The author disclaims copyright to this source code. In place of
|
|
# a legal notice, here is a blessing:
|
|
#
|
|
# May you do good and not evil.
|
|
# May you find forgiveness for yourself and forgive others.
|
|
# May you share freely, never taking more than you give.
|
|
#
|
|
#***********************************************************************
|
|
# This file implements regression tests for SQLite library. The
|
|
# focus of this file is testing "SELECT count(*)" statements.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
|
|
# Test plan:
|
|
#
|
|
# count-0.*: Make sure count(*) works on an empty database. (Ticket #3774)
|
|
#
|
|
# count-1.*: Test that the OP_Count instruction appears to work on both
|
|
# tables and indexes. Test both when they contain 0 entries,
|
|
# when all entries are on the root page, and when the b-tree
|
|
# forms a structure 2 and 3 levels deep.
|
|
#
|
|
#
|
|
|
|
do_test count-0.1 {
|
|
db eval {
|
|
SELECT count(*) FROM sqlite_master;
|
|
}
|
|
} {0}
|
|
|
|
set iTest 0
|
|
foreach zIndex [list {
|
|
/* no-op */
|
|
} {
|
|
CREATE INDEX i1 ON t1(a);
|
|
}] {
|
|
incr iTest
|
|
do_test count-1.$iTest.1 {
|
|
execsql {
|
|
DROP TABLE IF EXISTS t1;
|
|
CREATE TABLE t1(a, b);
|
|
}
|
|
execsql $zIndex
|
|
execsql { SELECT count(*) FROM t1 }
|
|
} {0}
|
|
|
|
do_test count-1.$iTest.2 {
|
|
execsql {
|
|
INSERT INTO t1 VALUES(1, 2);
|
|
INSERT INTO t1 VALUES(3, 4);
|
|
SELECT count(*) FROM t1;
|
|
}
|
|
} {2}
|
|
|
|
do_test count-1.$iTest.3 {
|
|
execsql {
|
|
INSERT INTO t1 SELECT * FROM t1; -- 4
|
|
INSERT INTO t1 SELECT * FROM t1; -- 8
|
|
INSERT INTO t1 SELECT * FROM t1; -- 16
|
|
INSERT INTO t1 SELECT * FROM t1; -- 32
|
|
INSERT INTO t1 SELECT * FROM t1; -- 64
|
|
INSERT INTO t1 SELECT * FROM t1; -- 128
|
|
INSERT INTO t1 SELECT * FROM t1; -- 256
|
|
SELECT count(*) FROM t1;
|
|
}
|
|
} {256}
|
|
|
|
do_test count-1.$iTest.4 {
|
|
execsql {
|
|
INSERT INTO t1 SELECT * FROM t1; -- 512
|
|
INSERT INTO t1 SELECT * FROM t1; -- 1024
|
|
INSERT INTO t1 SELECT * FROM t1; -- 2048
|
|
INSERT INTO t1 SELECT * FROM t1; -- 4096
|
|
SELECT count(*) FROM t1;
|
|
}
|
|
} {4096}
|
|
|
|
do_test count-1.$iTest.5 {
|
|
execsql {
|
|
BEGIN;
|
|
INSERT INTO t1 SELECT * FROM t1; -- 8192
|
|
INSERT INTO t1 SELECT * FROM t1; -- 16384
|
|
INSERT INTO t1 SELECT * FROM t1; -- 32768
|
|
INSERT INTO t1 SELECT * FROM t1; -- 65536
|
|
COMMIT;
|
|
SELECT count(*) FROM t1;
|
|
}
|
|
} {65536}
|
|
}
|
|
|
|
proc uses_op_count {sql} {
|
|
if {[lsearch [execsql "EXPLAIN $sql"] Count]>=0} {
|
|
return 1;
|
|
}
|
|
return 0
|
|
}
|
|
|
|
do_test count-2.1 {
|
|
execsql {
|
|
CREATE TABLE t2(a, b);
|
|
}
|
|
uses_op_count {SELECT count(*) FROM t2}
|
|
} {1}
|
|
do_test count-2.2 {
|
|
catchsql {SELECT count(DISTINCT *) FROM t2}
|
|
} {1 {near "*": syntax error}}
|
|
do_test count-2.3 {
|
|
uses_op_count {SELECT count(DISTINCT a) FROM t2}
|
|
} {0}
|
|
do_test count-2.4 {
|
|
uses_op_count {SELECT count(a) FROM t2}
|
|
} {0}
|
|
do_test count-2.5 {
|
|
uses_op_count {SELECT count() FROM t2}
|
|
} {1}
|
|
do_test count-2.6 {
|
|
catchsql {SELECT count(DISTINCT) FROM t2}
|
|
} {1 {DISTINCT aggregates must have exactly one argument}}
|
|
do_test count-2.7 {
|
|
uses_op_count {SELECT count(*)+1 FROM t2}
|
|
} {0}
|
|
do_test count-2.8 {
|
|
uses_op_count {SELECT count(*) FROM t2 WHERE a IS NOT NULL}
|
|
} {0}
|
|
do_execsql_test count-2.9a {
|
|
SELECT count(*) FROM t2 HAVING count(*)>1;
|
|
} {}
|
|
do_execsql_test count-2.9b {
|
|
SELECT count(*) FROM t2 HAVING count(*)<10;
|
|
} {0}
|
|
do_test count-2.10 {
|
|
uses_op_count {SELECT count(*) FROM (SELECT 1)}
|
|
} {0}
|
|
do_test count-2.11 {
|
|
execsql { CREATE VIEW v1 AS SELECT 1 AS a }
|
|
uses_op_count {SELECT count(*) FROM v1}
|
|
} {0}
|
|
do_test count-2.12 {
|
|
uses_op_count {SELECT count(*), max(a) FROM t2}
|
|
} {0}
|
|
do_test count-2.13 {
|
|
uses_op_count {SELECT count(*) FROM t1, t2}
|
|
} {0}
|
|
|
|
ifcapable vtab {
|
|
register_echo_module [sqlite3_connection_pointer db]
|
|
do_test count-2.14 {
|
|
execsql { CREATE VIRTUAL TABLE techo USING echo(t1); }
|
|
uses_op_count {SELECT count(*) FROM techo}
|
|
} {0}
|
|
}
|
|
|
|
do_test count-3.1 {
|
|
execsql {
|
|
CREATE TABLE t3(a, b);
|
|
SELECT a FROM (SELECT count(*) AS a FROM t3) WHERE a==0;
|
|
}
|
|
} {0}
|
|
do_test count-3.2 {
|
|
execsql {
|
|
SELECT a FROM (SELECT count(*) AS a FROM t3) WHERE a==1;
|
|
}
|
|
} {}
|
|
|
|
do_test count-4.1 {
|
|
execsql {
|
|
CREATE TABLE t4(a, b);
|
|
INSERT INTO t4 VALUES('a', 'b');
|
|
CREATE INDEX t4i1 ON t4(b, a);
|
|
SELECT count(*) FROM t4;
|
|
}
|
|
} {1}
|
|
do_test count-4.2 {
|
|
execsql {
|
|
CREATE INDEX t4i2 ON t4(b);
|
|
SELECT count(*) FROM t4;
|
|
}
|
|
} {1}
|
|
do_test count-4.3 {
|
|
execsql {
|
|
DROP INDEX t4i1;
|
|
CREATE INDEX t4i1 ON t4(b, a);
|
|
SELECT count(*) FROM t4;
|
|
}
|
|
} {1}
|
|
|
|
do_execsql_test count-5.1 {
|
|
CREATE TABLE t5(a TEXT PRIMARY KEY, b VARCHAR(50)) WITHOUT ROWID;
|
|
INSERT INTO t5 VALUES('bison','jazz');
|
|
SELECT count(*) FROM t5;
|
|
} {1}
|
|
|
|
do_catchsql_test count-6.1 {
|
|
CREATE TABLE t6(x);
|
|
SELECT count(DISTINCT) FROM t6 GROUP BY x;
|
|
} {1 {DISTINCT aggregates must have exactly one argument}}
|
|
|
|
# 2020-05-08.
|
|
# The count() optimization should honor the NOT INDEXED clause
|
|
#
|
|
reset_db
|
|
do_execsql_test count-7.1 {
|
|
CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c VARCHAR(1000));
|
|
CREATE INDEX t1b ON t1(b);
|
|
INSERT INTO t1(a,b,c) values(1,2,'count.test cases for NOT INDEXED');
|
|
ANALYZE;
|
|
UPDATE sqlite_stat1 SET stat='1000000 10' WHERE idx='t1b';
|
|
ANALYZE sqlite_master;
|
|
}
|
|
do_eqp_test count-7.2 {
|
|
SELECT count(1) FROM t1;
|
|
} {
|
|
QUERY PLAN
|
|
`--SCAN t1 USING COVERING INDEX t1b
|
|
}
|
|
do_eqp_test count-7.3 {
|
|
SELECT count(1) FROM t1 NOT INDEXED
|
|
} {
|
|
QUERY PLAN
|
|
`--SCAN t1
|
|
}
|
|
do_eqp_test count-7.3 {
|
|
SELECT count(*) FROM t1;
|
|
} {
|
|
QUERY PLAN
|
|
`--SCAN t1 USING COVERING INDEX t1b
|
|
}
|
|
do_eqp_test count-7.4 {
|
|
SELECT count(*) FROM t1 NOT INDEXED
|
|
} {
|
|
QUERY PLAN
|
|
`--SCAN t1
|
|
}
|
|
|
|
do_execsql_test count-8.0 {
|
|
CREATE TABLE t7(a INT,b TEXT,c BLOB,d REAL);
|
|
CREATE TABLE t8(a INT,b TEXT,c BLOB,d REAL);
|
|
CREATE INDEX t8a ON t8(a);
|
|
}
|
|
do_catchsql_test count-8.1 {
|
|
SELECT * FROM t8 WHERE (a, b) IN (
|
|
SELECT count(t8.b), count(*) FROM t7 AS ra0 ORDER BY count(*)
|
|
) AND t8.b=0;
|
|
} {1 {misuse of aggregate: count()}}
|
|
|
|
|
|
finish_test
|