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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 14:07:11 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 14:07:11 +0000
commit63847496f14c813a5d80efd5b7de0f1294ffe1e3 (patch)
tree01c7571c7c762ceee70638549a99834fdd7c411b /test/insert5.test
parentInitial commit. (diff)
downloadsqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.tar.xz
sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.zip
Adding upstream version 3.45.1.upstream/3.45.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+# 2007 November 23
+#
+# 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.
+#
+#***********************************************************************
+#
+# The tests in this file ensure that a temporary table is used
+# when required by an "INSERT INTO ... SELECT ..." statement.
+#
+# $Id: insert5.test,v 1.5 2008/08/04 03:51:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+ finish_test
+ return
+}
+
+# Return true if the compilation of the sql passed as an argument
+# includes the opcode OpenEphemeral. An "INSERT INTO ... SELECT"
+# statement includes such an opcode if a temp-table is used
+# to store intermediate results.
+#
+proc uses_temp_table {sql} {
+ return [expr {[lsearch [execsql "EXPLAIN $sql"] OpenEphemeral]>=0}]
+}
+
+# Construct the sample database.
+#
+do_test insert5-1.0 {
+ forcedelete test2.db test2.db-journal
+ execsql {
+ CREATE TABLE MAIN(Id INTEGER, Id1 INTEGER);
+ CREATE TABLE B(Id INTEGER, Id1 INTEGER);
+ CREATE VIEW v1 AS SELECT * FROM B;
+ CREATE VIEW v2 AS SELECT * FROM MAIN;
+ INSERT INTO MAIN(Id,Id1) VALUES(2,3);
+ INSERT INTO B(Id,Id1) VALUES(2,3);
+ }
+} {}
+
+# Run the query.
+#
+ifcapable compound {
+ do_test insert5-1.1 {
+ execsql {
+ INSERT INTO B
+ SELECT * FROM B UNION ALL
+ SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id);
+ SELECT * FROM B;
+ }
+ } {2 3 2 3 2 3}
+} else {
+ do_test insert5-1.1 {
+ execsql {
+ INSERT INTO B SELECT * FROM B;
+ INSERT INTO B
+ SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id);
+ SELECT * FROM B;
+ }
+ } {2 3 2 3 2 3}
+}
+do_test insert5-2.1 {
+ uses_temp_table { INSERT INTO b SELECT * FROM main }
+} {0}
+do_test insert5-2.2 {
+ uses_temp_table { INSERT INTO b SELECT * FROM b }
+} {1}
+do_test insert5-2.3 {
+ uses_temp_table { INSERT INTO b SELECT (SELECT id FROM b), id1 FROM main }
+} {1}
+do_test insert5-2.4 {
+ uses_temp_table { INSERT INTO b SELECT id1, (SELECT id FROM b) FROM main }
+} {1}
+do_test insert5-2.5 {
+ uses_temp_table {
+ INSERT INTO b
+ SELECT * FROM main WHERE id = (SELECT id1 FROM b WHERE main.id = b.id) }
+} {1}
+do_test insert5-2.6 {
+ uses_temp_table { INSERT INTO b SELECT * FROM v1 }
+} {1}
+do_test insert5-2.7 {
+ uses_temp_table { INSERT INTO b SELECT * FROM v2 }
+} {0}
+do_test insert5-2.8 {
+ uses_temp_table {
+ INSERT INTO b
+ SELECT * FROM main WHERE id > 10 AND max(id1, (SELECT id FROM b)) > 10;
+ }
+} {1}
+
+# UPDATE: Using a column from the outer query (main.id) in the GROUP BY
+# or ORDER BY of a sub-query is no longer supported.
+#
+# do_test insert5-2.9 {
+# uses_temp_table {
+# INSERT INTO b
+# SELECT * FROM main
+# WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id)
+# }
+# } {}
+do_test insert5-2.9 {
+ catchsql {
+ INSERT INTO b
+ SELECT * FROM main
+ WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id)
+ }
+} {1 {no such column: main.id}}
+
+finish_test