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238 lines
6.4 KiB
Plaintext
238 lines
6.4 KiB
Plaintext
# 2018 May 8
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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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# This file implements regression tests for SQLite library.
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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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set testprefix filter1
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ifcapable !windowfunc {
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finish_test
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return
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}
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do_execsql_test 1.0 {
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CREATE TABLE t1(a);
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CREATE INDEX i1 ON t1(a);
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INSERT INTO t1 VALUES(1), (2), (3), (4), (5), (6), (7), (8), (9);
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}
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do_execsql_test 1.1 { SELECT sum(a) FROM t1; } 45
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do_execsql_test 1.2 { SELECT sum(a) FILTER( WHERE a<5 ) FROM t1; } 10
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do_execsql_test 1.3 {
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SELECT sum(a) FILTER( WHERE a>9 ),
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sum(a) FILTER( WHERE a>8 ),
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sum(a) FILTER( WHERE a>7 ),
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sum(a) FILTER( WHERE a>6 ),
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sum(a) FILTER( WHERE a>5 ),
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sum(a) FILTER( WHERE a>4 ),
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sum(a) FILTER( WHERE a>3 ),
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sum(a) FILTER( WHERE a>2 ),
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sum(a) FILTER( WHERE a>1 ),
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sum(a) FILTER( WHERE a>0 )
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FROM t1;
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} {{} 9 17 24 30 35 39 42 44 45}
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do_execsql_test 1.4 {
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SELECT max(a) FILTER (WHERE (a % 2)==0) FROM t1
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} {8}
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do_execsql_test 1.5 {
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SELECT min(a) FILTER (WHERE a>4) FROM t1
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} {5}
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do_execsql_test 1.6 {
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SELECT count(*) FILTER (WHERE a!=5) FROM t1
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} {8}
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do_execsql_test 1.7 {
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SELECT min(a) FILTER (WHERE a>3) FROM t1 GROUP BY (a%2) ORDER BY 1;
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} {4 5}
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do_execsql_test 1.8 {
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CREATE VIEW vv AS
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SELECT sum(a) FILTER( WHERE a>9 ),
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sum(a) FILTER( WHERE a>8 ),
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sum(a) FILTER( WHERE a>7 ),
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sum(a) FILTER( WHERE a>6 ),
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sum(a) FILTER( WHERE a>5 ),
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sum(a) FILTER( WHERE a>4 ),
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sum(a) FILTER( WHERE a>3 ),
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sum(a) FILTER( WHERE a>2 ),
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sum(a) FILTER( WHERE a>1 ),
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sum(a) FILTER( WHERE a>0 )
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FROM t1;
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SELECT * FROM vv;
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} {{} 9 17 24 30 35 39 42 44 45}
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#-------------------------------------------------------------------------
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# Test some errors:
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#
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# .1 FILTER on a non-aggregate function,
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# .2 Window function in FILTER clause,
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# .3 Aggregate function in FILTER clause,
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#
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reset_db
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do_execsql_test 2.0 {
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CREATE TABLE t1(a);
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INSERT INTO t1 VALUES(1), (2), (3), (4), (5), (6), (7), (8), (9);
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}
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do_catchsql_test 2.1 {
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SELECT upper(a) FILTER (WHERE a=1) FROM t1
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} {1 {FILTER may not be used with non-aggregate upper()}}
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do_catchsql_test 2.2 {
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SELECT sum(a) FILTER (WHERE 1 - max(a) OVER () > 0) FROM t1
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} {1 {misuse of window function max()}}
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do_catchsql_test 2.3 {
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SELECT sum(a) FILTER (WHERE 1 - count(a)) FROM t1
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} {1 {misuse of aggregate function count()}}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 3.0 {
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CREATE TABLE t1(a,b);
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INSERT INTO t1 VALUES(1, 1);
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}
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do_execsql_test 3.1 {
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SELECT b, max(a) FILTER (WHERE b='x') FROM t1;
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} {1 {}}
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do_execsql_test 3.2 {
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CREATE TABLE t2(a, b, c);
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INSERT INTO t2 VALUES(1, 2, 3);
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INSERT INTO t2 VALUES(1, 3, 4);
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INSERT INTO t2 VALUES(2, 5, 6);
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INSERT INTO t2 VALUES(2, 7, 8);
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}
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do_execsql_test 3.3 {
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SELECT a, c, max(b) FILTER (WHERE c='x') FROM t2 GROUP BY a;
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} {1 3 {} 2 6 {}}
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do_execsql_test 3.4 {
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DELETE FROM t2;
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INSERT INTO t2 VALUES(1, 5, 'x');
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INSERT INTO t2 VALUES(1, 2, 3);
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INSERT INTO t2 VALUES(1, 4, 'x');
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INSERT INTO t2 VALUES(2, 5, 6);
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INSERT INTO t2 VALUES(2, 7, 8);
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}
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do_execsql_test 3.5 {
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SELECT a, c, max(b) FILTER (WHERE c='x') FROM t2 GROUP BY a;
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} {1 x 5 2 6 {}}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 4.0 {
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CREATE TABLE t1(a, b, c);
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INSERT INTO t1 VALUES('a', 0, 5);
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INSERT INTO t1 VALUES('a', 1, 10);
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INSERT INTO t1 VALUES('a', 0, 15);
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INSERT INTO t1 VALUES('b', 0, 5);
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INSERT INTO t1 VALUES('b', 1, 1000);
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INSERT INTO t1 VALUES('b', 0, 5);
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INSERT INTO t1 VALUES('c', 0, 1);
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INSERT INTO t1 VALUES('c', 1, 2);
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INSERT INTO t1 VALUES('c', 0, 3);
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}
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do_execsql_test 4.1 {
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SELECT avg(c) FILTER (WHERE b!=1) AS h FROM t1 GROUP BY a ORDER BY h;
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} {2.0 5.0 10.0}
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do_execsql_test 4.2 {
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SELECT avg(c) FILTER (WHERE b!=1) AS h FROM t1 GROUP BY a ORDER BY (h+1.0);
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} {2.0 5.0 10.0}
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do_execsql_test 4.3 {
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SELECT a, avg(c) FILTER (WHERE b!=1) AS h FROM t1 GROUP BY a ORDER BY avg(c);
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} {c 2.0 a 10.0 b 5.0}
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do_execsql_test 4.4 {
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SELECT a, avg(c) FILTER (WHERE b!=1) FROM t1 GROUP BY a ORDER BY 2
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} {c 2.0 b 5.0 a 10.0}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 5.0 {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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INSERT INTO t1 VALUES(1, 3);
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}
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do_execsql_test 5.1 {
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SELECT count(*) FILTER (WHERE b>2) FROM (SELECT * FROM t1)
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} {1}
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do_execsql_test 5.2 {
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SELECT count(*) FILTER (WHERE b>2) OVER () FROM (SELECT * FROM t1)
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} {1 1}
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do_execsql_test 5.3 {
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SELECT count(*) FILTER (WHERE b>2) OVER (ORDER BY b) FROM (SELECT * FROM t1)
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} {0 1}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 6.0 {
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CREATE TABLE t1(a,b);
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INSERT INTO t1 VALUES(1,1);
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INSERT INTO t1 VALUES(2,2);
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CREATE TABLE t2(x,y);
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INSERT INTO t2 VALUES(1,1);
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}
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do_execsql_test 6.1 {
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SELECT (SELECT COUNT(a) FILTER(WHERE x) FROM t2) FROM t1;
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} {1 1}
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do_execsql_test 6.2 {
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SELECT (SELECT COUNT(a+x) FROM t2) FROM t1;
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} {1 1}
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do_execsql_test 6.3 {
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SELECT (SELECT COUNT(a) FROM t2) FROM t1;
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} {2}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 7.0 {
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CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
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INSERT INTO t1 VALUES(321, 100000);
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INSERT INTO t1 VALUES(111, 110000);
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INSERT INTO t1 VALUES(444, 120000);
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INSERT INTO t1 VALUES(222, 130000);
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}
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do_execsql_test 7.1 {
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SELECT max(a), max(a) FILTER (WHERE b<12345), b FROM t1;
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} {
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444 {} 120000
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}
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# 2023-02-17 dbsqlfuzz 4f8e0de6e272bbbb3e1b41cb5aea31e0b47297e3
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# count() with FILTER clause using the COUNTOFVIEW optimization.
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#
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reset_db
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do_execsql_test 8.0 {
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CREATE TABLE t0(c0 INT);
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CREATE TABLE t1a(a INTEGER PRIMARY KEY, b TEXT);
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INSERT INTO t1a VALUES(1,'one'),(2,NULL),(3,'three');
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CREATE TABLE t1b(c INTEGER PRIMARY KEY, d TEXT);
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INSERT INTO t1b VALUES(4,'four'),(5,NULL),(6,'six');
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CREATE VIEW t1 AS SELECT a, b FROM t1a UNION ALL SELECT c, d FROM t1b;
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SELECT count()FILTER(WHERE b IS NULL) FROM t1;
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} 2
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finish_test
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