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+# 2017 April 11
+#
+# 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.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix indexexpr2
+
+do_execsql_test 1 {
+ CREATE TABLE t1(a, b);
+ INSERT INTO t1 VALUES(1, 'one');
+ INSERT INTO t1 VALUES(2, 'two');
+ INSERT INTO t1 VALUES(3, 'three');
+
+ CREATE INDEX i1 ON t1(b || 'x');
+}
+
+do_execsql_test 1.1 {
+ SELECT 'TWOX' == (b || 'x') FROM t1 WHERE (b || 'x')>'onex'
+} {0 0}
+
+do_execsql_test 1.2 {
+ SELECT 'TWOX' == (b || 'x') COLLATE nocase FROM t1 WHERE (b || 'x')>'onex'
+} {0 1}
+
+do_execsql_test 2.0 {
+ CREATE INDEX i2 ON t1(a+1);
+}
+
+do_execsql_test 2.1 {
+ SELECT a+1, quote(a+1) FROM t1 ORDER BY 1;
+} {2 2 3 3 4 4}
+
+#-------------------------------------------------------------------------
+# At one point SQLite was incorrectly using indexes on expressions to
+# optimize ORDER BY and GROUP BY clauses even when the collation
+# sequences of the query and index did not match (ticket [e20dd54ab0e4]).
+# The following tests - 3.* - attempt to verify that this has been fixed.
+#
+
+reset_db
+do_execsql_test 3.1.0 {
+ CREATE TABLE t1(a, b);
+ CREATE INDEX i1 ON t1(a, b);
+} {}
+
+do_eqp_test 3.1.1 {
+ SELECT b FROM t1 WHERE b IS NOT NULL AND a IS NULL
+ GROUP BY b COLLATE nocase
+ ORDER BY b COLLATE nocase;
+} {/USE TEMP B-TREE FOR GROUP BY/}
+
+do_execsql_test 3.2.0 {
+ CREATE TABLE t2(x);
+
+ INSERT INTO t2 VALUES('.ABC');
+ INSERT INTO t2 VALUES('.abcd');
+ INSERT INTO t2 VALUES('.defg');
+ INSERT INTO t2 VALUES('.DEF');
+} {}
+
+do_execsql_test 3.2.1 {
+ SELECT x FROM t2 ORDER BY substr(x, 2) COLLATE nocase;
+} {
+ .ABC .abcd .DEF .defg
+}
+
+do_execsql_test 3.2.2 {
+ CREATE INDEX i2 ON t2( substr(x, 2) );
+ SELECT x FROM t2 ORDER BY substr(x, 2) COLLATE nocase;
+} {
+ .ABC .abcd .DEF .defg
+}
+
+do_execsql_test 3.3.0 {
+ CREATE TABLE t3(x);
+}
+
+ifcapable json1 {
+ do_eqp_test 3.3.1 {
+ SELECT json_extract(x, '$.b') FROM t2
+ WHERE json_extract(x, '$.b') IS NOT NULL AND json_extract(x, '$.a') IS NULL
+ GROUP BY json_extract(x, '$.b') COLLATE nocase
+ ORDER BY json_extract(x, '$.b') COLLATE nocase;
+ } [string map {"\n " \n} {
+ QUERY PLAN
+ |--SCAN t2
+ `--USE TEMP B-TREE FOR GROUP BY
+ }]
+
+ do_execsql_test 3.3.2 {
+ CREATE INDEX i3 ON t3(json_extract(x, '$.a'), json_extract(x, '$.b'));
+ } {}
+
+ do_eqp_test 3.3.3 {
+ SELECT json_extract(x, '$.b') FROM t3
+ WHERE json_extract(x, '$.b') IS NOT NULL AND json_extract(x, '$.a') IS NULL
+ GROUP BY json_extract(x, '$.b') COLLATE nocase
+ ORDER BY json_extract(x, '$.b') COLLATE nocase;
+ } [string map {"\n " \n} {
+ QUERY PLAN
+ |--SEARCH t3 USING INDEX i3 (<expr>=?)
+ `--USE TEMP B-TREE FOR GROUP BY
+ }]
+}
+
+do_execsql_test 3.4.0 {
+ CREATE TABLE t4(a, b);
+ INSERT INTO t4 VALUES('.ABC', 1);
+ INSERT INTO t4 VALUES('.abc', 2);
+ INSERT INTO t4 VALUES('.ABC', 3);
+ INSERT INTO t4 VALUES('.abc', 4);
+}
+
+do_execsql_test 3.4.1 {
+ SELECT * FROM t4
+ WHERE substr(a, 2) = 'abc' COLLATE NOCASE
+ ORDER BY substr(a, 2), b;
+} {
+ .ABC 1 .ABC 3 .abc 2 .abc 4
+}
+
+do_execsql_test 3.4.2 {
+ CREATE INDEX i4 ON t4( substr(a, 2) COLLATE NOCASE, b );
+ SELECT * FROM t4
+ WHERE substr(a, 2) = 'abc' COLLATE NOCASE
+ ORDER BY substr(a, 2), b;
+} {
+ .ABC 1 .ABC 3 .abc 2 .abc 4
+}
+
+do_execsql_test 3.4.3 {
+ DROP INDEX i4;
+ UPDATE t4 SET a = printf('%s%d',a,b);
+ SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
+} {.ABC1 1 .abc2 2 .ABC3 3 .abc4 4}
+do_execsql_test 3.4.4 {
+ SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE binary;
+} {.ABC1 1 .ABC3 3 .abc2 2 .abc4 4}
+
+do_execsql_test 3.4.5 {
+ CREATE INDEX i4 ON t4( Substr(a,-2) COLLATE nocase );
+ SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
+} {.ABC1 1 .abc2 2 .ABC3 3 .abc4 4}
+do_execsql_test 3.4.5eqp {
+ EXPLAIN QUERY PLAN
+ SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
+} {/SCAN t4 USING INDEX i4/}
+do_execsql_test 3.4.6 {
+ SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE binary;
+} {.ABC1 1 .ABC3 3 .abc2 2 .abc4 4}
+
+# 2014-09-15: Verify that UPDATEs of columns not referenced by a
+# index on expression do not modify the index.
+#
+unset -nocomplain cnt
+set cnt 0
+proc refcnt {x} {
+ global cnt
+ incr cnt
+ return $x
+}
+db close
+sqlite3 db :memory:
+db function refcnt -deterministic refcnt
+do_test 4.100 {
+ db eval {
+ CREATE TABLE t1(a,b,c,d,e,f);
+ CREATE INDEX t1abc ON t1(refcnt(a+b+c));
+ }
+ set ::cnt
+} {0}
+do_test 4.110 {
+ db eval {INSERT INTO t1 VALUES(1,2,3,4,5,6);}
+ set ::cnt
+ # The refcnt() function is invoked once to compute the index value
+} {1}
+do_test 4.120 {
+ set ::cnt 0
+ db eval {UPDATE t1 SET b=b+1;}
+ set ::cnt
+ # The refcnt() function is invoked twice, once to remove the old index
+ # entry and a second time to insert the new one.
+} {2}
+do_test 4.130 {
+ set ::cnt 0
+ db eval {UPDATE t1 SET d=d+1;}
+ set ::cnt
+ # Refcnt() should not be invoked because that index does not change.
+} {0}
+
+# Additional test cases to show that UPDATE does not modify indexes that
+# do not involve unchanged columns.
+#
+ifcapable vtab {
+ load_static_extension db explain
+ do_execsql_test 4.200 {
+ CREATE TABLE t2(a,b,c,d,e,f);
+ INSERT INTO t2 VALUES(2,3,4,5,6,7);
+ CREATE INDEX t2abc ON t2(a+b+c);
+ CREATE INDEX t2cd ON t2(c*d);
+ CREATE INDEX t2def ON t2(d,e+25*f);
+ SELECT sqlite_master.name
+ FROM sqlite_master, explain('UPDATE t2 SET b=b+1')
+ WHERE explain.opcode LIKE 'Open%'
+ AND sqlite_master.rootpage=explain.p2
+ ORDER BY 1;
+ } {t2 t2abc}
+ do_execsql_test 4.210 {
+ SELECT sqlite_master.name
+ FROM sqlite_master, explain('UPDATE t2 SET c=c+1')
+ WHERE explain.opcode LIKE 'Open%'
+ AND sqlite_master.rootpage=explain.p2
+ ORDER BY 1;
+ } {t2 t2abc t2cd}
+ do_execsql_test 4.220 {
+ SELECT sqlite_master.name
+ FROM sqlite_master, explain('UPDATE t2 SET c=c+1, f=NULL')
+ WHERE explain.opcode LIKE 'Open%'
+ AND sqlite_master.rootpage=explain.p2
+ ORDER BY 1;
+ } {t2 t2abc t2cd t2def}
+}
+
+#-------------------------------------------------------------------------
+# Test that ticket [d96eba87] has been fixed.
+#
+do_execsql_test 5.0 {
+ CREATE TABLE t5(a INTEGER, b INTEGER);
+ INSERT INTO t5 VALUES(2, 4), (3, 9);
+}
+do_execsql_test 5.1 {
+ SELECT * FROM t5 WHERE abs(a)=2 or abs(b)=9;
+} {2 4 3 9}
+do_execsql_test 5.2 {
+ CREATE INDEX t5a ON t5( abs(a) );
+ CREATE INDEX t5b ON t5( abs(b) );
+}
+do_execsql_test 5.4 {
+ SELECT * FROM t5 WHERE abs(a)=2 or abs(b)=9;
+} {2 4 3 9}
+
+#-------------------------------------------------------------------------
+do_execsql_test 6.0 {
+ CREATE TABLE x1(a INTEGER PRIMARY KEY, b);
+ INSERT INTO x1 VALUES
+ (1, 123), (2, '123'), (3, '123abc'), (4, 123.0), (5, 1234);
+}
+
+do_execsql_test 6.1.1 {
+ SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
+} {1 123 2 123 3 123abc 4 123.0}
+do_execsql_test 6.1.2 {
+ CREATE INDEX x1i ON x1( CAST(b AS INTEGER) );
+ SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
+} {1 123 2 123 3 123abc 4 123.0}
+do_eqp_test 6.1.3 {
+ SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
+} {SEARCH x1 USING INDEX x1i (<expr>=?)}
+
+do_execsql_test 6.2.1 {
+ SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
+} {1 123 2 123}
+do_execsql_test 6.2.2 {
+ CREATE INDEX x1i2 ON x1( CAST(b AS TEXT) );
+ SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
+} {1 123 2 123}
+do_eqp_test 6.2.3 {
+ SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
+} {SEARCH x1 USING INDEX x1i2 (<expr>=?)}
+
+do_execsql_test 7.0 {
+ CREATE TABLE IF NOT EXISTS t0(c0);
+ INSERT INTO t0(c0) VALUES (-9223372036854775808);
+ BEGIN;
+}
+do_catchsql_test 7.1 {
+ CREATE INDEX i0 ON t0(ABS(c0));
+} {1 {integer overflow}}
+do_execsql_test 7.2 {
+ COMMIT;
+ SELECT sql FROM sqlite_master WHERE tbl_name = 't0';
+ CREATE INDEX i0 ON t0(c0);
+} {{CREATE TABLE t0(c0)}}
+do_execsql_test 7.3 {
+ REINDEX;
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+ CREATE TABLE t0(c0);
+ CREATE INDEX i0 ON t0(c0) WHERE c0 NOT NULL;
+ INSERT INTO t0(c0) VALUES (NULL);
+}
+
+do_execsql_test 8.1.1 {
+ SELECT * FROM t0 WHERE ~('' BETWEEN t0.c0 AND TRUE);
+} {{}}
+do_execsql_test 8.1.2 {
+ SELECT ~('' BETWEEN t0.c0 AND TRUE) FROM t0;
+} {-1}
+
+foreach {tn expr} {
+ 1 " 0 == (34 BETWEEN c0 AND 33)"
+ 2 " 1 != (34 BETWEEN c0 AND 33)"
+ 3 "-1 < (34 BETWEEN c0 AND 33)"
+ 4 "-1 <= (34 BETWEEN c0 AND 33)"
+ 5 " 1 > (34 BETWEEN c0 AND 33)"
+ 6 " 1 >= (34 BETWEEN c0 AND 33)"
+ 7 " 1 - (34 BETWEEN c0 AND 33)"
+ 8 "-1 + (34 BETWEEN c0 AND 33)"
+ 9 " 1 | (34 BETWEEN c0 AND 33)"
+ 10 " 1 << (34 BETWEEN c0 AND 33)"
+ 11 " 1 >> (34 BETWEEN c0 AND 33)"
+ 12 " 1 || (34 BETWEEN c0 AND 33)"
+} {
+ do_execsql_test 8.3.$tn.1 "SELECT * FROM t0 WHERE $expr ORDER BY c0" { {} }
+ do_execsql_test 8.3.$tn.2 "SELECT ($expr) IS TRUE FROM t0" { 1 }
+}
+
+do_execsql_test 8.4 {
+ CREATE TABLE t1(a, b);
+ INSERT INTO t1 VALUES(1, 2), (3, 4);
+ CREATE TABLE t2(x, y);
+}
+
+foreach {tn expr} {
+ 1 " 0 == (a=0 AND y=1)"
+ 2 " 1 != (a=0 AND y=1)"
+ 3 "-1 < (a=0 AND y=1)"
+ 4 "-1 <= (a=0 AND y=1)"
+ 5 " 1 > (a=0 AND y=1)"
+ 6 " 1 >= (a=0 AND y=1)"
+ 7 " 1 - (a=0 AND y=1)"
+ 8 "-1 + (a=0 AND y=1)"
+ 9 " 1 | (a=0 AND y=1)"
+ 10 "1 << (a=0 AND y=1)"
+ 11 "1 >> (a=0 AND y=1)"
+ 12 "1 || (a=0 AND y=1)"
+
+ 13 " 0 == (10 BETWEEN y AND b)"
+ 14 " 1 != (10 BETWEEN y AND b)"
+ 15 "-1 < (10 BETWEEN y AND b)"
+ 16 "-1 <= (10 BETWEEN y AND b)"
+ 17 " 1 > (10 BETWEEN y AND b)"
+ 18 " 1 >= (10 BETWEEN y AND b)"
+ 19 " 1 - (10 BETWEEN y AND b)"
+ 20 "-1 + (10 BETWEEN y AND b)"
+ 21 " 1 | (10 BETWEEN y AND b)"
+ 22 " 1 << (10 BETWEEN y AND b)"
+ 23 " 1 >> (10 BETWEEN y AND b)"
+ 24 " 1 || (10 BETWEEN y AND b)"
+
+ 25 " 1 || (10 BETWEEN y AND b)"
+} {
+ do_execsql_test 8.5.$tn.1 "
+ SELECT * FROM t1 LEFT JOIN t2 WHERE $expr
+ " {1 2 {} {} 3 4 {} {}}
+
+ do_execsql_test 8.5.$tn.2 "
+ SELECT ($expr) IS TRUE FROM t1 LEFT JOIN t2
+ " {1 1}
+}
+
+# 2023-03-24 https://sqlite.org/forum/forumpost/79cf371080
+#
+reset_db
+do_execsql_test 9.0 {
+ CREATE TABLE t1(a INT, b INT);
+ CREATE INDEX t1x ON t1(a, abs(b));
+ CREATE TABLE t2(c INT, d INT);
+ INSERT INTO t1(a,b) VALUES(4,4),(5,-5),(5,20),(6,6);
+ INSERT INTO t2(c,d) VALUES(100,1),(200,1),(300,2);
+ SELECT *,
+ (SELECT max(c+abs(b)) FROM t2 GROUP BY d ORDER BY d LIMIT 1) AS subq
+ FROM t1 WHERE a=5;
+} {5 -5 205 5 20 220}
+
+# 2023-04-03 https://sqlite.org/forum/forumpost/44270909bb
+# and https://sqlite.org/forum/forumpost/e45108732c which are the
+# same problem, namely the failure to omit the EP_Collate property
+# from an expression node when changing it from TK_COLLATE into
+# TK_AGG_COLUMN because it resolves to an indexed expression.
+#
+reset_db
+do_execsql_test 10.0 {
+ CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+ CREATE INDEX t1x ON t1 (b, +b COLLATE NOCASE);
+ INSERT INTO t1(a,b) VALUES(1,'abcde');
+ SELECT * FROM t1 AS a0
+ WHERE (SELECT count(a0.b=+a0.b COLLATE NOCASE IN (b)) FROM t1 GROUP BY 2.5)
+ ORDER BY a0.b;
+} {1 abcde}
+do_execsql_test 10.1 {
+ CREATE TABLE t2(a TEXT);
+ INSERT INTO t2 VALUES('alice'),('bob'),('cindy'),('david');
+ CREATE INDEX t2x ON t2 (+a COLLATE NOCASE);
+ SELECT count(+a COLLATE NOCASE IN (SELECT 1)) AS x
+ FROM t2
+ GROUP BY SUBSTR(0,0);
+} 4
+
+# 2023-04-03 https://sqlite.org/forum/forumpost/409ebc7368
+# When a generated column appears in both an outer and an inner loop
+# (that is to say, the same table is used in both loops) and the
+# generated column is indexed and it is used inside an aggregate function,
+# make sure that the terms resolve to the correct aggregate.
+#
+do_execsql_test 11.0 {
+ CREATE TABLE t3 (a INT, b AS (-a));
+ CREATE INDEX t3x ON t3(b, a);
+ INSERT INTO t3(a) VALUES(44);
+ SELECT * FROM t3 AS a0
+ WHERE (SELECT sum(-a0.a=b) FROM t3 GROUP BY b)
+ GROUP BY b;
+} {44 -44}
+
+finish_test
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