| Index: third_party/sqlite/sqlite-src-3070603/test/count.test
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| diff --git a/third_party/sqlite/sqlite-src-3070603/test/count.test b/third_party/sqlite/sqlite-src-3070603/test/count.test
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| new file mode 100644
|
| index 0000000000000000000000000000000000000000..fbdd13b6ba55202760ddc0c8fdd70d6d34f868b0
|
| --- /dev/null
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| +++ b/third_party/sqlite/sqlite-src-3070603/test/count.test
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| @@ -0,0 +1,192 @@
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| +# 2009 February 24
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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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| +# This file implements regression tests for SQLite library. The
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| +# focus of this file is testing "SELECT count(*)" statements.
|
| +#
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| +# $Id: count.test,v 1.6 2009/06/05 17:09:12 drh Exp $
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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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| +
|
| +# Test plan:
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| +#
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| +# count-0.*: Make sure count(*) works on an empty database. (Ticket #3774)
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| +#
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| +# count-1.*: Test that the OP_Count instruction appears to work on both
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| +# tables and indexes. Test both when they contain 0 entries,
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| +# when all entries are on the root page, and when the b-tree
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| +# forms a structure 2 and 3 levels deep.
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| +#
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| +# count-2.*: Test that
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| +#
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| +#
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| +
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| +do_test count-0.1 {
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| + db eval {
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| + SELECT count(*) FROM sqlite_master;
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| + }
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| +} {0}
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| +
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| +set iTest 0
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| +foreach zIndex [list {
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| + /* no-op */
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| +} {
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| + CREATE INDEX i1 ON t1(a);
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| +}] {
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| + incr iTest
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| + do_test count-1.$iTest.1 {
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| + execsql {
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| + DROP TABLE IF EXISTS t1;
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| + CREATE TABLE t1(a, b);
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| + }
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| + execsql $zIndex
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| + execsql { SELECT count(*) FROM t1 }
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| + } {0}
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| +
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| + do_test count-1.$iTest.2 {
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| + execsql {
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| + INSERT INTO t1 VALUES(1, 2);
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| + INSERT INTO t1 VALUES(3, 4);
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| + SELECT count(*) FROM t1;
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| + }
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| + } {2}
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| +
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| + do_test count-1.$iTest.3 {
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| + execsql {
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| + INSERT INTO t1 SELECT * FROM t1; -- 4
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| + INSERT INTO t1 SELECT * FROM t1; -- 8
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| + INSERT INTO t1 SELECT * FROM t1; -- 16
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| + INSERT INTO t1 SELECT * FROM t1; -- 32
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| + INSERT INTO t1 SELECT * FROM t1; -- 64
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| + INSERT INTO t1 SELECT * FROM t1; -- 128
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| + INSERT INTO t1 SELECT * FROM t1; -- 256
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| + SELECT count(*) FROM t1;
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| + }
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| + } {256}
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| +
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| + do_test count-1.$iTest.4 {
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| + execsql {
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| + INSERT INTO t1 SELECT * FROM t1; -- 512
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| + INSERT INTO t1 SELECT * FROM t1; -- 1024
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| + INSERT INTO t1 SELECT * FROM t1; -- 2048
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| + INSERT INTO t1 SELECT * FROM t1; -- 4096
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| + SELECT count(*) FROM t1;
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| + }
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| + } {4096}
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| +
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| + do_test count-1.$iTest.5 {
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| + execsql {
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| + BEGIN;
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| + INSERT INTO t1 SELECT * FROM t1; -- 8192
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| + INSERT INTO t1 SELECT * FROM t1; -- 16384
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| + INSERT INTO t1 SELECT * FROM t1; -- 32768
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| + INSERT INTO t1 SELECT * FROM t1; -- 65536
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| + COMMIT;
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| + SELECT count(*) FROM t1;
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| + }
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| + } {65536}
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| +}
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| +
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| +proc uses_op_count {sql} {
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| + if {[lsearch [execsql "EXPLAIN $sql"] Count]>=0} {
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| + return 1;
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| + }
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| + return 0
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| +}
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| +
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| +do_test count-2.1 {
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| + execsql {
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| + CREATE TABLE t2(a, b);
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| + }
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| + uses_op_count {SELECT count(*) FROM t2}
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| +} {1}
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| +do_test count-2.2 {
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| + catchsql {SELECT count(DISTINCT *) FROM t2}
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| +} {1 {near "*": syntax error}}
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| +do_test count-2.3 {
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| + uses_op_count {SELECT count(DISTINCT a) FROM t2}
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| +} {0}
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| +do_test count-2.4 {
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| + uses_op_count {SELECT count(a) FROM t2}
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| +} {0}
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| +do_test count-2.5 {
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| + uses_op_count {SELECT count() FROM t2}
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| +} {1}
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| +do_test count-2.6 {
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| + catchsql {SELECT count(DISTINCT) FROM t2}
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| +} {1 {DISTINCT aggregates must have exactly one argument}}
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| +do_test count-2.7 {
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| + uses_op_count {SELECT count(*)+1 FROM t2}
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| +} {0}
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| +do_test count-2.8 {
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| + uses_op_count {SELECT count(*) FROM t2 WHERE a IS NOT NULL}
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| +} {0}
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| +do_test count-2.9 {
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| + catchsql {SELECT count(*) FROM t2 HAVING count(*)>1}
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| +} {1 {a GROUP BY clause is required before HAVING}}
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| +do_test count-2.10 {
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| + uses_op_count {SELECT count(*) FROM (SELECT 1)}
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| +} {0}
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| +do_test count-2.11 {
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| + execsql { CREATE VIEW v1 AS SELECT 1 AS a }
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| + uses_op_count {SELECT count(*) FROM v1}
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| +} {0}
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| +do_test count-2.12 {
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| + uses_op_count {SELECT count(*), max(a) FROM t2}
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| +} {0}
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| +do_test count-2.13 {
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| + uses_op_count {SELECT count(*) FROM t1, t2}
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| +} {0}
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| +
|
| +ifcapable vtab {
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| + register_echo_module [sqlite3_connection_pointer db]
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| + do_test count-2.14 {
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| + execsql { CREATE VIRTUAL TABLE techo USING echo(t1); }
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| + uses_op_count {SELECT count(*) FROM techo}
|
| + } {0}
|
| +}
|
| +
|
| +do_test count-3.1 {
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| + execsql {
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| + CREATE TABLE t3(a, b);
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| + SELECT a FROM (SELECT count(*) AS a FROM t3) WHERE a==0;
|
| + }
|
| +} {0}
|
| +do_test count-3.2 {
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| + execsql {
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| + SELECT a FROM (SELECT count(*) AS a FROM t3) WHERE a==1;
|
| + }
|
| +} {}
|
| +
|
| +do_test count-4.1 {
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| + execsql {
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| + CREATE TABLE t4(a, b);
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| + INSERT INTO t4 VALUES('a', 'b');
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| + CREATE INDEX t4i1 ON t4(b, a);
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| + SELECT count(*) FROM t4;
|
| + }
|
| +} {1}
|
| +do_test count-4.2 {
|
| + execsql {
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| + CREATE INDEX t4i2 ON t4(b);
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| + SELECT count(*) FROM t4;
|
| + }
|
| +} {1}
|
| +do_test count-4.3 {
|
| + execsql {
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| + DROP INDEX t4i1;
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| + CREATE INDEX t4i1 ON t4(b, a);
|
| + SELECT count(*) FROM t4;
|
| + }
|
| +} {1}
|
| +
|
| +
|
| +finish_test
|
|
|