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 # 2015-08-31 # # 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 indexes on expressions. # set testdir [file dirname \$argv0] source \$testdir/tester.tcl do_execsql_test indexexpr1-100 { CREATE TABLE t1(a,b,c); INSERT INTO t1(a,b,c) /* 123456789 123456789 123456789 123456789 123456789 123456789 */ VALUES('In_the_beginning_was_the_Word',1,1), ('and_the_Word_was_with_God',1,2), ('and_the_Word_was_God',1,3), ('The_same_was_in_the_beginning_with_God',2,1), ('All_things_were_made_by_him',3,1), ('and_without_him_was_not_any_thing_made_that_was_made',3,2); CREATE INDEX t1a1 ON t1(substr(a,1,12)); } {} do_execsql_test indexexpr1-110 { SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c; } {1 2 | 1 3 |} do_execsql_test indexexpr1-110eqp { EXPLAIN QUERY PLAN SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c; } {/USING INDEX t1a1/} do_execsql_test indexexpr1-120 { SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c; } {1 2 | 1 3 |} do_execsql_test indexexpr1-120eqp { EXPLAIN QUERY PLAN SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c; } {/USING INDEX t1a1/} do_execsql_test indexexpr1-130 { CREATE INDEX t1ba ON t1(b,substr(a,2,3),c); SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c; } {2 3} do_execsql_test indexexpr1-130eqp { EXPLAIN QUERY PLAN SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c; } {/USING INDEX t1ba/} do_execsql_test indexexpr1-140 { SELECT rowid, substr(a,b,3), '|' FROM t1 ORDER BY 2; } {1 In_ | 2 and | 3 and | 6 d_w | 4 he_ | 5 l_t |} do_execsql_test indexexpr1-141 { CREATE INDEX t1abx ON t1(substr(a,b,3)); SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid; } {1 2 3} do_execsql_test indexexpr1-141eqp { EXPLAIN QUERY PLAN SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid; } {/USING INDEX t1abx/} do_execsql_test indexexpr1-142 { SELECT rowid FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +rowid; } {1 2 3} do_execsql_test indexexpr1-150 { SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz') ORDER BY +rowid; } {2 3 5} do_execsql_test indexexpr1-150eqp { EXPLAIN QUERY PLAN SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz') ORDER BY +rowid; } {/USING INDEX t1abx/} do_execsql_test indexexpr1-160 { ALTER TABLE t1 ADD COLUMN d; UPDATE t1 SET d=length(a); CREATE INDEX t1a2 ON t1(SUBSTR(a, 27, 3)) WHERE d>=29; SELECT rowid, b, c FROM t1 WHERE substr(a,27,3)=='ord' AND d>=29; } {1 1 1} do_execsql_test indexexpr1-160eqp { EXPLAIN QUERY PLAN SELECT rowid, b, c FROM t1 WHERE substr(a,27,3)=='ord' AND d>=29; } {/USING INDEX t1a2/} # ORDER BY using an indexed expression # do_execsql_test indexexpr1-170 { CREATE INDEX t1alen ON t1(length(a)); SELECT length(a) FROM t1 ORDER BY length(a); } {20 25 27 29 38 52} do_execsql_test indexexpr1-170eqp { EXPLAIN QUERY PLAN SELECT length(a) FROM t1 ORDER BY length(a); } {/SCAN TABLE t1 USING INDEX t1alen/} do_execsql_test indexexpr1-171 { SELECT length(a) FROM t1 ORDER BY length(a) DESC; } {52 38 29 27 25 20} do_execsql_test indexexpr1-171eqp { EXPLAIN QUERY PLAN SELECT length(a) FROM t1 ORDER BY length(a) DESC; } {/SCAN TABLE t1 USING INDEX t1alen/} do_execsql_test indexexpr1-200 { DROP TABLE t1; CREATE TABLE t1(id ANY PRIMARY KEY, a,b,c) WITHOUT ROWID; INSERT INTO t1(id,a,b,c) VALUES(1,'In_the_beginning_was_the_Word',1,1), (2,'and_the_Word_was_with_God',1,2), (3,'and_the_Word_was_God',1,3), (4,'The_same_was_in_the_beginning_with_God',2,1), (5,'All_things_were_made_by_him',3,1), (6,'and_without_him_was_not_any_thing_made_that_was_made',3,2); CREATE INDEX t1a1 ON t1(substr(a,1,12)); } {} do_execsql_test indexexpr1-210 { SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c; } {1 2 | 1 3 |} do_execsql_test indexexpr1-210eqp { EXPLAIN QUERY PLAN SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c; } {/USING INDEX t1a1/} do_execsql_test indexexpr1-220 { SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c; } {1 2 | 1 3 |} do_execsql_test indexexpr1-220eqp { EXPLAIN QUERY PLAN SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c; } {/USING INDEX t1a1/} do_execsql_test indexexpr1-230 { CREATE INDEX t1ba ON t1(b,substr(a,2,3),c); SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c; } {2 3} do_execsql_test indexexpr1-230eqp { EXPLAIN QUERY PLAN SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c; } {/USING INDEX t1ba/} do_execsql_test indexexpr1-240 { SELECT id, substr(a,b,3), '|' FROM t1 ORDER BY 2; } {1 In_ | 2 and | 3 and | 6 d_w | 4 he_ | 5 l_t |} do_execsql_test indexexpr1-241 { CREATE INDEX t1abx ON t1(substr(a,b,3)); SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id; } {1 2 3} do_execsql_test indexexpr1-241eqp { EXPLAIN QUERY PLAN SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id; } {/USING INDEX t1abx/} do_execsql_test indexexpr1-242 { SELECT id FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +id; } {1 2 3} do_execsql_test indexexpr1-250 { SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz') ORDER BY +id; } {2 3 5} do_execsql_test indexexpr1-250eqp { EXPLAIN QUERY PLAN SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz') ORDER BY +id; } {/USING INDEX t1abx/} do_execsql_test indexexpr1-260 { ALTER TABLE t1 ADD COLUMN d; UPDATE t1 SET d=length(a); CREATE INDEX t1a2 ON t1(SUBSTR(a, 27, 3)) WHERE d>=29; SELECT id, b, c FROM t1 WHERE substr(a,27,3)=='ord' AND d>=29; } {1 1 1} do_execsql_test indexexpr1-260eqp { EXPLAIN QUERY PLAN SELECT id, b, c FROM t1 WHERE substr(a,27,3)=='ord' AND d>=29; } {/USING INDEX t1a2/} do_catchsql_test indexexpr1-300 { CREATE TABLE t2(a,b,c); INSERT INTO t2 VALUES(1,2,3); CREATE INDEX t2x1 ON t2(a,b+random()); } {1 {non-deterministic functions prohibited in index expressions}} do_catchsql_test indexexpr1-301 { CREATE INDEX t2x1 ON t2(julianday('now',a)); } {1 {non-deterministic function in index expression or CHECK constraint}} do_catchsql_test indexexpr1-310 { CREATE INDEX t2x2 ON t2(a,b+(SELECT 15)); } {1 {subqueries prohibited in index expressions}} do_catchsql_test indexexpr1-320 { CREATE TABLE e1(x,y,UNIQUE(y,substr(x,1,5))); } {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}} do_catchsql_test indexexpr1-330 { CREATE TABLE e1(x,y,PRIMARY KEY(y,substr(x,1,5))); } {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}} do_catchsql_test indexexpr1-331 { CREATE TABLE e1(x,y,PRIMARY KEY(y,substr(x,1,5))) WITHOUT ROWID; } {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}} do_catchsql_test indexexpr1-340 { CREATE TABLE e1(x,y,FOREIGN KEY(substr(y,1,5)) REFERENCES t1); } {1 {near "(": syntax error}} do_execsql_test indexexpr1-400 { CREATE TABLE t3(a,b,c); WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<30) INSERT INTO t3(a,b,c) SELECT x, printf('ab%04xyz',x), random() FROM c; CREATE UNIQUE INDEX t3abc ON t3(CAST(a AS text), b, substr(c,1,3)); SELECT a FROM t3 WHERE CAST(a AS text)<='10' ORDER BY +a; PRAGMA integrity_check; } {1 10 ok} do_catchsql_test indexexpr1-410 { INSERT INTO t3 SELECT * FROM t3 WHERE rowid=10; } {1 {UNIQUE constraint failed: index 't3abc'}} do_execsql_test indexexpr1-500 { CREATE TABLE t5(a); CREATE TABLE cnt(x); WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5) INSERT INTO cnt(x) SELECT x FROM c; INSERT INTO t5(a) SELECT printf('abc%03dxyz',x) FROM cnt; CREATE INDEX t5ax ON t5( substr(a,4,3) ); } {} do_execsql_test indexexpr1-510 { -- The use of the "k" alias in the WHERE clause is technically -- illegal, but SQLite allows it for historical reasons. In this -- test and the next, verify that "k" can be used by the t5ax index SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x); } {001 002 003 004 005} do_execsql_test indexexpr1-510eqp { EXPLAIN QUERY PLAN SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x); } {/USING INDEX t5ax/} # Skip-scan on an indexed expression # do_execsql_test indexexpr1-600 { DROP TABLE IF EXISTS t4; CREATE TABLE t4(a,b,c,d,e,f,g,h,i); CREATE INDEX t4all ON t4(a,b,c