wasCSharpSQLite – Blame information for rev 1

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1 office 1 # 2007 November 23
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 #
12 # The tests in this file ensure that a temporary table is used
13 # when required by an "INSERT INTO ... SELECT ..." statement.
14 #
15 # $Id: insert5.test,v 1.5 2008/08/04 03:51:24 danielk1977 Exp $
16  
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
19  
20 ifcapable !subquery {
21 finish_test
22 return
23 }
24  
25 # Return true if the compilation of the sql passed as an argument
26 # includes the opcode OpenEphemeral. An "INSERT INTO ... SELECT"
27 # statement includes such an opcode if a temp-table is used
28 # to store intermediate results.
29 #
30 proc uses_temp_table {sql} {
31 return [expr {[lsearch [execsql "EXPLAIN $sql"] OpenEphemeral]>=0}]
32 }
33  
34 # Construct the sample database.
35 #
36 do_test insert5-1.0 {
37 file delete -force test2.db test2.db-journal
38 execsql {
39 CREATE TABLE MAIN(Id INTEGER, Id1 INTEGER);
40 CREATE TABLE B(Id INTEGER, Id1 INTEGER);
41 CREATE VIEW v1 AS SELECT * FROM B;
42 CREATE VIEW v2 AS SELECT * FROM MAIN;
43 INSERT INTO MAIN(Id,Id1) VALUES(2,3);
44 INSERT INTO B(Id,Id1) VALUES(2,3);
45 }
46 } {}
47  
48 # Run the query.
49 #
50 ifcapable compound {
51 do_test insert5-1.1 {
52 execsql {
53 INSERT INTO B
54 SELECT * FROM B UNION ALL
55 SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id);
56 SELECT * FROM B;
57 }
58 } {2 3 2 3 2 3}
59 } else {
60 do_test insert5-1.1 {
61 execsql {
62 INSERT INTO B SELECT * FROM B;
63 INSERT INTO B
64 SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id);
65 SELECT * FROM B;
66 }
67 } {2 3 2 3 2 3}
68 }
69 do_test insert5-2.1 {
70 uses_temp_table { INSERT INTO b SELECT * FROM main }
71 } {0}
72 do_test insert5-2.2 {
73 uses_temp_table { INSERT INTO b SELECT * FROM b }
74 } {1}
75 do_test insert5-2.3 {
76 uses_temp_table { INSERT INTO b SELECT (SELECT id FROM b), id1 FROM main }
77 } {1}
78 do_test insert5-2.4 {
79 uses_temp_table { INSERT INTO b SELECT id1, (SELECT id FROM b) FROM main }
80 } {1}
81 do_test insert5-2.5 {
82 uses_temp_table {
83 INSERT INTO b
84 SELECT * FROM main WHERE id = (SELECT id1 FROM b WHERE main.id = b.id) }
85 } {1}
86 do_test insert5-2.6 {
87 uses_temp_table { INSERT INTO b SELECT * FROM v1 }
88 } {1}
89 do_test insert5-2.7 {
90 uses_temp_table { INSERT INTO b SELECT * FROM v2 }
91 } {0}
92 do_test insert5-2.8 {
93 uses_temp_table {
94 INSERT INTO b
95 SELECT * FROM main WHERE id > 10 AND max(id1, (SELECT id FROM b)) > 10;
96 }
97 } {1}
98  
99 # UPDATE: Using a column from the outer query (main.id) in the GROUP BY
100 # or ORDER BY of a sub-query is no longer supported.
101 #
102 # do_test insert5-2.9 {
103 # uses_temp_table {
104 # INSERT INTO b
105 # SELECT * FROM main
106 # WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id)
107 # }
108 # } {}
109 do_test insert5-2.9 {
110 catchsql {
111 INSERT INTO b
112 SELECT * FROM main
113 WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id)
114 }
115 } {1 {no such column: main.id}}
116  
117 finish_test