Adding upstream version 1.37.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

testdata/tcl/autoanalyze1.test

@@ -0,0 +1,123 @@
+# 2017-02-17
+#
+# 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 tests for the logic used to estimate when
+# running ANALYZE would be beneficial.
+#
+# Note that this test uses some hard-coded bitmask values from sqliteInt.h.
+# If any of the following constants changes:
+#
+#    define TF_HasStat1   0x0010
+#    define TF_StatsUsed  0x0100
+#
+# then some of the magic numbers in test results below might need to be
+# adjusted.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# There is nothing to test if ANALYZE is disable for this build.
+# These tests also use "PRAGMA stats" which are only enabled for
+# debugging builds.
+#
+ifcapable {!debug || !analyze || !vtab} {
+  finish_test
+  return
+}
+
+do_execsql_test autoanalyze1-100 {
+  -- Build up a test table with some indexes
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+  CREATE UNIQUE INDEX t1bc ON t1(b,c);
+  CREATE INDEX t1d ON t1(d);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t1(a,b,c,d) SELECT x, x, x, x FROM c;
+  -- Verify that the hasStat1 flag is clear on on indexes
+  SELECT idx, flgs FROM pragma_stats
+   WHERE idx IS NOT NULL
+   ORDER BY idx;
+  -- Verify that the TF_HasStat1 flag is clear on the table
+  SELECT tbl, (flgs & 0x10)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {t1bc 0 t1d 0 t1 0}
+
+# No use of stat1 recorded so far
+do_execsql_test autoanalyze1-110 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+# Access using a unique index does not set the TF_StatsUsed flag.
+#
+do_execsql_test autoanalyze1-200 {
+  SELECT * FROM t1 WHERE a=55;
+} {55 55 55 55}
+do_execsql_test autoanalyze1-201 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+do_execsql_test autoanalyze1-210 {
+  SELECT * FROM t1 WHERE a IN (55,199,299);
+} {55 55 55 55}
+do_execsql_test autoanalyze1-211 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+do_execsql_test autoanalyze1-220 {
+  SELECT * FROM t1 WHERE (b,c)=(45,45);
+} {45 45 45 45}
+do_execsql_test autoanalyze1-221 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+# Any use of the non-unique t1d index triggers the use of stats.
+#
+sqlite3 db test.db
+do_execsql_test autoanalyze1-300 {
+  SELECT * FROM t1 WHERE d=45;
+} {45 45 45 45}
+do_execsql_test autoanalyze1-301 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {1}
+
+sqlite3 db test.db
+do_execsql_test autoanalyze1-310 {
+  SELECT * FROM t1 WHERE d=45 AND a=45;
+} {45 45 45 45}
+do_execsql_test autoanalyze1-311 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}  ;# The ROWID lookup short-circuits the d=45 constraint
+
+sqlite3 db test.db
+do_execsql_test autoanalyze1-320 {
+  SELECT * FROM t1 WHERE d=45 AND a IN (45,46);
+} {45 45 45 45}
+do_execsql_test autoanalyze1-321 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {1}
+
+# Any use of prefix of a unique index triggers the use of stats
+#
+sqlite3 db test.db
+do_execsql_test autoanalyze1-400 {
+  SELECT * FROM t1 WHERE b=45;
+} {45 45 45 45}
+do_execsql_test autoanalyze1-401 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {1}
+
+# The TF_StatsUsed flag is reset when the database is reopened
+#
+sqlite3 db test.db
+do_execsql_test autoanalyze1-500 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+finish_test