xref: /sqlite-3.40.0/test/insert2.test (revision 1b2e0329) 
1# 2001 September 15
2#
3# The author disclaims copyright to this source code.  In place of
4# a legal notice, here is a blessing:
5#
6#    May you do good and not evil.
7#    May you find forgiveness for yourself and forgive others.
8#    May you share freely, never taking more than you give.
9#
10#***********************************************************************
11# This file implements regression tests for SQLite library.  The
12# focus of this file is testing the INSERT statement that takes is
13# result from a SELECT.
14#
15# $Id: insert2.test,v 1.8 2002/03/03 02:49:52 drh Exp $
16
17set testdir [file dirname $argv0]
18source $testdir/tester.tcl
19
20# Create some tables with data that we can select against
21#
22do_test insert2-1.0 {
23  execsql {CREATE TABLE d1(n int, log int);}
24  for {set i 1} {$i<=20} {incr i} {
25    for {set j 0} {pow(2,$j)<$i} {incr j} {}
26    execsql "INSERT INTO d1 VALUES($i,$j)"
27  }
28  execsql {SELECT * FROM d1 ORDER BY n}
29} {1 0 2 1 3 2 4 2 5 3 6 3 7 3 8 3 9 4 10 4 11 4 12 4 13 4 14 4 15 4 16 4 17 5 18 5 19 5 20 5}
30
31# Insert into a new table from the old one.
32#
33do_test insert2-1.1.1 {
34  execsql {
35    CREATE TABLE t1(log int, cnt int);
36    PRAGMA count_changes=on;
37    INSERT INTO t1 SELECT log, count(*) FROM d1 GROUP BY log;
38  }
39} {6}
40do_test insert2-1.1.2 {
41  execsql {SELECT * FROM t1 ORDER BY log}
42} {0 1 1 1 2 2 3 4 4 8 5 4}
43
44do_test insert2-1.2.1 {
45  catch {execsql {DROP TABLE t1}}
46  execsql {
47    CREATE TABLE t1(log int, cnt int);
48    INSERT INTO t1
49       SELECT log, count(*) FROM d1 GROUP BY log
50       EXCEPT SELECT n-1,log FROM d1;
51  }
52} {4}
53do_test insert2-1.2.2 {
54  execsql {
55    SELECT * FROM t1 ORDER BY log;
56  }
57} {0 1 3 4 4 8 5 4}
58do_test insert2-1.3.1 {
59  catch {execsql {DROP TABLE t1}}
60  execsql {
61    CREATE TABLE t1(log int, cnt int);
62    PRAGMA count_changes=off;
63    INSERT INTO t1
64       SELECT log, count(*) FROM d1 GROUP BY log
65       INTERSECT SELECT n-1,log FROM d1;
66  }
67} {}
68do_test insert2-1.3.2 {
69  execsql {
70    SELECT * FROM t1 ORDER BY log;
71  }
72} {1 1 2 2}
73do_test insert2-1.4 {
74  catch {execsql {DROP TABLE t1}}
75  set r [execsql {
76    CREATE TABLE t1(log int, cnt int);
77    CREATE INDEX i1 ON t1(log);
78    CREATE INDEX i2 ON t1(cnt);
79    INSERT INTO t1 SELECT log, count() FROM d1 GROUP BY log;
80    SELECT * FROM t1 ORDER BY log;
81  }]
82  lappend r [execsql {SELECT cnt FROM t1 WHERE log=3}]
83  lappend r [execsql {SELECT log FROM t1 WHERE cnt=4 ORDER BY log}]
84} {0 1 1 1 2 2 3 4 4 8 5 4 4 {3 5}}
85
86do_test insert2-2.0 {
87  execsql {
88    CREATE TABLE t3(a,b,c);
89    CREATE TABLE t4(x,y);
90    INSERT INTO t4 VALUES(1,2);
91    SELECT * FROM t4;
92  }
93} {1 2}
94do_test insert2-2.1 {
95  execsql {
96    INSERT INTO t3(a,c) SELECT * FROM t4;
97    SELECT * FROM t3;
98  }
99} {1 {} 2}
100do_test insert2-2.2 {
101  execsql {
102    DELETE FROM t3;
103    INSERT INTO t3(c,b) SELECT * FROM t4;
104    SELECT * FROM t3;
105  }
106} {{} 2 1}
107do_test insert2-2.3 {
108  execsql {
109    DELETE FROM t3;
110    INSERT INTO t3(c,a,b) SELECT x, 'hi', y FROM t4;
111    SELECT * FROM t3;
112  }
113} {hi 2 1}
114
115do_test insert2-3.0 {
116  set x [execsql {PRAGMA integrity_check}]
117  if {$x==""} {set x ok}
118  set x
119} {ok}
120
121# File table t4 with lots of data
122#
123do_test insert2-3.1 {
124  execsql {
125    SELECT * from t4;
126  }
127} {1 2}
128do_test insert2-3.2 {
129  execsql {
130    BEGIN;
131    INSERT INTO t4 VALUES(2,4);
132    INSERT INTO t4 VALUES(3,6);
133    INSERT INTO t4 VALUES(4,8);
134    INSERT INTO t4 VALUES(5,10);
135    INSERT INTO t4 VALUES(6,12);
136    INSERT INTO t4 VALUES(7,14);
137    INSERT INTO t4 VALUES(8,16);
138    INSERT INTO t4 VALUES(9,18);
139    INSERT INTO t4 VALUES(10,20);
140    COMMIT;
141    SELECT count(*) FROM t4;
142  }
143} {10}
144do_test insert2-3.3 {
145  execsql {
146    BEGIN;
147    INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
148    INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
149    INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
150    INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
151    COMMIT;
152    SELECT count(*) FROM t4;
153  }
154} {160}
155do_test insert2-3.4 {
156  execsql {
157    BEGIN;
158    UPDATE t4 SET y='lots of data for the row where x=' || x
159                     || ' and y=' || y || ' - even more data to fill space';
160    COMMIT;
161    SELECT count(*) FROM t4;
162  }
163} {160}
164do_test insert2-3.5 {
165  execsql {
166    BEGIN;
167    INSERT INTO t4 SELECT x+(SELECT max(x)+1 FROM t4),y FROM t4;
168    SELECT count(*) from t4;
169    ROLLBACK;
170  }
171} {320}
172do_test insert2-3.6 {
173  execsql {
174    SELECT count(*) FROM t4;
175  }
176} {160}
177do_test insert2-3.7 {
178  execsql {
179    BEGIN;
180    DELETE FROM t4 WHERE x!=123;
181    SELECT count(*) FROM t4;
182    ROLLBACK;
183  }
184} {1}
185
186finish_test
187