[sql] Import SQLite 3.17.0.

third_party/sqlite/src/test/update2.test

+# 2017 January 9
+#
+# 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.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix update2
+
+db func repeat [list string repeat]
+
+#-------------------------------------------------------------------------
+# 1.1.* A one-pass UPDATE that does balance() operations on the IPK index
+#       that it is scanning.
+#
+# 1.2.* Same again, but with a WITHOUT ROWID table.
+#
+set nrow [expr 10]
+do_execsql_test 1.1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+  WITH s(i) AS ( SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<$nrow )
+  INSERT INTO t1(b) SELECT char((i % 26) + 65) FROM s;
+  INSERT INTO t2 SELECT * FROM t1;
+}
+
+do_execsql_test 1.1.1 {
+  UPDATE t1 SET b = repeat(b, 100)
+}
+
+do_execsql_test 1.1.2 {
+  SELECT * FROM t1;
+} [db eval { SELECT a, repeat(b, 100) FROM t2 }]
+
+do_execsql_test 1.2.0 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT PRIMARY KEY, b) WITHOUT ROWID;
+  WITH s(i) AS ( SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<$nrow )
+  INSERT INTO t1(a, b) SELECT i+1, char((i % 26) + 65) FROM s;
+}
+
+#explain_i { UPDATE t1 SET b = repeat(b, 100) }
+do_execsql_test 1.2.1 {
+  UPDATE t1 SET b = repeat(b, 100)
+}
+
+do_execsql_test 1.2.2 {
+  SELECT * FROM t1;
+} [db eval { SELECT a, repeat(b, 100) FROM t2 }]
+
+
+#-------------------------------------------------------------------------
+# A one-pass UPDATE that does balance() operations on the IPK index
+# that it is scanning.
+#
+do_execsql_test 2.1 {
+  CREATE TABLE t3(a PRIMARY KEY, b, c);
+  CREATE INDEX t3i ON t3(b);
+} {}
+do_execsql_test 2.2 { UPDATE t3 SET c=1 WHERE b=?      } {}
+do_execsql_test 2.3 { UPDATE t3 SET c=1 WHERE rowid=?  } {}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t4(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  CREATE INDEX t4c ON t4(c);
+  INSERT INTO t4 VALUES(1, 2, 3);
+  INSERT INTO t4 VALUES(2, 3, 4);
+}
+
+do_execsql_test 3.1 {
+  UPDATE t4 SET c=c+2 WHERE c>2;
+  SELECT a, c FROM t4 ORDER BY a;
+} {1 5 2 6}
+
+#-------------------------------------------------------------------------
+#
+foreach {tn sql} {
+  1 { 
+    CREATE TABLE b1(a INTEGER PRIMARY KEY, b, c);
+    CREATE TABLE c1(a INTEGER PRIMARY KEY, b, c, d)
+  }
+  2 { 
+    CREATE TABLE b1(a INT PRIMARY KEY, b, c) WITHOUT ROWID;
+    CREATE TABLE c1(a INT PRIMARY KEY, b, c, d) WITHOUT ROWID;
+  }
+} {
+  execsql { DROP TABLE IF EXISTS b1; DROP TABLE IF EXISTS c1; }
+  execsql $sql
+
+  do_execsql_test 4.$tn.0 {
+    CREATE UNIQUE INDEX b1c ON b1(c);
+    INSERT INTO b1 VALUES(1, 'a', 1);
+    INSERT INTO b1 VALUES(2, 'b', 15);
+    INSERT INTO b1 VALUES(3, 'c', 3);
+    INSERT INTO b1 VALUES(4, 'd', 4);
+    INSERT INTO b1 VALUES(5, 'e', 5);
+    INSERT INTO b1 VALUES(6, 'f', 6);
+    INSERT INTO b1 VALUES(7, 'g', 7);
+  }
+
+  do_execsql_test 4.$tn.1 {
+    UPDATE OR REPLACE b1 SET c=c+10 WHERE a BETWEEN 4 AND 7;
+    SELECT * FROM b1 ORDER BY a;
+  } {
+    1 a 1
+    3 c 3
+    4 d 14
+    5 e 15
+    6 f 16
+    7 g 17
+  }
+
+  do_execsql_test 4.$tn.2 {
+    CREATE INDEX c1d ON c1(d, b);
+    CREATE UNIQUE INDEX c1c ON c1(c, b);
+
+    INSERT INTO c1 VALUES(1, 'a', 1,  1);
+    INSERT INTO c1 VALUES(2, 'a', 15, 2);
+    INSERT INTO c1 VALUES(3, 'a', 3,  3);
+    INSERT INTO c1 VALUES(4, 'a', 4,  4);
+    INSERT INTO c1 VALUES(5, 'a', 5,  5);
+    INSERT INTO c1 VALUES(6, 'a', 6,  6);
+    INSERT INTO c1 VALUES(7, 'a', 7,  7);
+  }
+
+  do_execsql_test 4.$tn.3 {
+    UPDATE OR REPLACE c1 SET c=c+10 WHERE d BETWEEN 4 AND 7;
+    SELECT * FROM c1 ORDER BY a;
+  } {
+    1 a 1 1
+    3 a 3 3
+    4 a 14 4
+    5 a 15 5
+    6 a 16 6
+    7 a 17 7
+  }
+
+  do_execsql_test 4.$tn.4 { PRAGMA integrity_check } ok
+
+  do_execsql_test 4.$tn.5 {
+    DROP INDEX c1d;
+    DROP INDEX c1c;
+    DELETE FROM c1;
+
+    INSERT INTO c1 VALUES(1, 'a', 1,  1);
+    INSERT INTO c1 VALUES(2, 'a', 15, 2);
+    INSERT INTO c1 VALUES(3, 'a', 3,  3);
+    INSERT INTO c1 VALUES(4, 'a', 4,  4);
+    INSERT INTO c1 VALUES(5, 'a', 5,  5);
+    INSERT INTO c1 VALUES(6, 'a', 6,  6);
+    INSERT INTO c1 VALUES(7, 'a', 7,  7);
+
+    CREATE INDEX c1d ON c1(d);
+    CREATE UNIQUE INDEX c1c ON c1(c);
+  }
+
+  do_execsql_test 4.$tn.6 {
+    UPDATE OR REPLACE c1 SET c=c+10 WHERE d BETWEEN 4 AND 7;
+    SELECT * FROM c1 ORDER BY a;
+  } {
+    1 a 1 1
+    3 a 3 3
+    4 a 14 4
+    5 a 15 5
+    6 a 16 6
+    7 a 17 7
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 5.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX x1c ON x1(b, c);
+  INSERT INTO x1 VALUES(1, 'a', 1);
+  INSERT INTO x1 VALUES(2, 'a', 2);
+  INSERT INTO x1 VALUES(3, 'a', 3);
+}
+
+do_execsql_test 5.1.1 {
+  UPDATE x1 SET c=c+1 WHERE b='a';
+}
+
+do_execsql_test 5.1.2 {
+  SELECT * FROM x1;
+} {1 a 2 2 a 3 3 a 4}
+
+do_test 5.2 {
+  catch { array unset A }
+  db eval { EXPLAIN UPDATE x1 SET c=c+1 WHERE b='a' } { incr A($opcode) }
+  set A(NotExists)
+} {1}
+
+
+finish_test
+