Improvements to query invariant testing such that it uses the new

SQLITE_DBCONFIG_REVERSE_SCANORDER opcode to sqlite3_db_config() to make more
accurate judgements about when a query is ambiguous, and hence when query
invariant testing is approprate.

FossilOrigin-Name: be9ab292cd14889b1c9648b47138260b33fe5be282ff2d90653b1387885a7d02

diff --git a/Makefile.in b/Makefile.in
index 2a71bd2c5cddc84b057c38df1a69066807aba6ca..f278b053e6335dfe120bf4ff6a88f04f0563acc1 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -602,17 +602,35 @@ SHELL_OPT += -DSQLITE_ENABLE_OFFSET_SQL_FUNC
 FUZZERSHELL_OPT = 
 FUZZCHECK_OPT += -I$(TOP)/test
 FUZZCHECK_OPT += -I$(TOP)/ext/recover
-FUZZCHECK_OPT += -DSQLITE_OMIT_LOAD_EXTENSION
-FUZZCHECK_OPT += -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_OSS_FUZZ
-FUZZCHECK_OPT += -DSQLITE_MAX_MEMORY=50000000
-FUZZCHECK_OPT += -DSQLITE_PRINTF_PRECISION_LIMIT=1000
-FUZZCHECK_OPT += -DSQLITE_ENABLE_FTS4
-FUZZCHECK_OPT += -DSQLITE_ENABLE_FTS3_PARENTHESIS
-FUZZCHECK_OPT += -DSQLITE_ENABLE_FTS5
-FUZZCHECK_OPT += -DSQLITE_ENABLE_RTREE
-FUZZCHECK_OPT += -DSQLITE_ENABLE_GEOPOLY
-FUZZCHECK_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
-FUZZCHECK_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
+FUZZCHECK_OPT += \
+  -DSQLITE_OSS_FUZZ \
+  -DSQLITE_ENABLE_BYTECODE_VTAB \
+  -DSQLITE_ENABLE_DBPAGE_VTAB \
+  -DSQLITE_ENABLE_DBSTAT_VTAB \
+  -DSQLITE_ENABLE_BYTECODE_VTAB \
+  -DSQLITE_ENABLE_DESERIALIZE \
+  -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
+  -DSQLITE_ENABLE_FTS3_PARENTHESIS \
+  -DSQLITE_ENABLE_FTS4 \
+  -DSQLITE_ENABLE_FTS5 \
+  -DSQLITE_ENABLE_GEOPOLY \
+  -DSQLITE_ENABLE_MATH_FUNCTIONS \
+  -DSQLITE_ENABLE_MEMSYS5 \
+  -DSQLITE_ENABLE_NORMALIZE \
+  -DSQLITE_ENABLE_OFFSET_SQL_FUNC \
+  -DSQLITE_ENABLE_PREUPDATE_HOOK \
+  -DSQLITE_ENABLE_RTREE \
+  -DSQLITE_ENABLE_SESSION \
+  -DSQLITE_ENABLE_STMTVTAB \
+  -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION \
+  -DSQLITE_ENABLE_STAT4 \
+  -DSQLITE_ENABLE_STMT_SCANSTATUS \
+  -DSQLITE_MAX_MEMORY=50000000 \
+  -DSQLITE_MAX_MMAP_SIZE=0 \
+  -DSQLITE_OMIT_LOAD_EXTENSION \
+  -DSQLITE_PRINTF_PRECISION_LIMIT=1000 \
+  -DSQLITE_PRIVATE=""
+
 FUZZCHECK_SRC += $(TOP)/test/fuzzcheck.c
 FUZZCHECK_SRC += $(TOP)/test/ossfuzz.c
 FUZZCHECK_SRC += $(TOP)/test/fuzzinvariants.c

diff --git a/Makefile.msc b/Makefile.msc
index 5528b8e7229ab5672d2f0ba2a070c15eb2455447..a8b5d3083b187bb4140140f8065f9105b3192a63 100644 (file)
--- a/Makefile.msc
+++ b/Makefile.msc
@@ -1671,6 +1671,33 @@ FUZZERSHELL_COMPILE_OPTS =
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -I$(TOP)\test -I$(TOP)\ext\recover
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_MEMSYS5
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_OSS_FUZZ
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_BYTECODE_VTAB
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_DBPAGE_VTAB
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_DBSTAT_VTAB
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_BYTECODE_VTAB
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_DESERIALIZE
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_EXPLAIN_COMMENTS
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_FTS3_PARENTHESIS
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_FTS4
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_FTS5
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_GEOPOLY
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_MATH_FUNCTIONS
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_MEMSYS5
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_NORMALIZE
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_OFFSET_SQL_FUNC\r
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_PREUPDATE_HOOK
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_RTREE
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_SESSION
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_STMTVTAB
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_STAT4
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_STMT_SCANSTATUS
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_MAX_MEMORY=50000000
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_MAX_MMAP_SIZE=0
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_OMIT_LOAD_EXTENSION
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_PRINTF_PRECISION_LIMIT=1000
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_PRIVATE=""
+
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_MAX_MEMORY=50000000
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_PRINTF_PRECISION_LIMIT=1000
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_OMIT_LOAD_EXTENSION

diff --git a/manifest b/manifest
index d174bd6ab18d560d5f92f95430da675e18bed6fe..c7f872c26f66469c24486905c744261edf84db8b 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,11 +1,11 @@
-C Add\sSQLITE_DBCONFIG_REVERSE_SCANORDER\sfor\sdirect\sC-language\saccess\sto\sthe\n"PRAGMA\sreverse_unordered_selects"\ssetting.
-D 2023-03-06T19:04:39.903
+C Improvements\sto\squery\sinvariant\stesting\ssuch\sthat\sit\suses\sthe\snew\nSQLITE_DBCONFIG_REVERSE_SCANORDER\sopcode\sto\ssqlite3_db_config()\sto\smake\smore\naccurate\sjudgements\sabout\swhen\sa\squery\sis\sambiguous,\sand\shence\swhen\squery\ninvariant\stesting\sis\sapproprate.
+D 2023-03-06T23:38:44.071
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
-F Makefile.in 594f07f8829020a45d825234edf14046544b5bf6bc0057a9d5b83b58686b1c46
+F Makefile.in 73076ae60a143476b6890b5c3b88848fce19ac8caefc3ff5ae97f72694dc946d
 F Makefile.linux-gcc f609543700659711fbd230eced1f01353117621dccae7b9fb70daa64236c5241
-F Makefile.msc b0026b61d1242add00c28dbe169271a763fffcb3af6762bcdbeb20c3efe6a69f
+F Makefile.msc e3a7faf7da80b891edcc0378eb9b4b1274ae080ee1fd1337c649bfe9af9aa456
 F README.md 8b8df9ca852aeac4864eb1e400002633ee6db84065bd01b78c33817f97d31f5e
 F VERSION 17f95ae2fdf21f0e9575eb0b0511ea63f15d71dfff431b21c2b4adbfa70cfbbf
 F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
@@ -1140,7 +1140,7 @@ F test/fuzz3.test 9c813e6613b837cb7a277b0383cd66bfa07042b4cf0317157c35852f30043c
 F test/fuzz4.test c229bcdb45518a89e1d208a21343e061503460ac69fae1539320a89f572eb634
 F test/fuzz_common.tcl b7197de6ed1ee8250a4f82d67876f4561b42ee8cbbfc6160dcb66331bad3f830
 F test/fuzz_malloc.test f348276e732e814802e39f042b1f6da6362a610af73a528d8f76898fde6b22f2
-F test/fuzzcheck.c 90d3435c5359029d79b0945110e9c83a529469c03e4380338578c47c5a9ea296
+F test/fuzzcheck.c a3d4967ba9a56b13e097f613409178cfb20796d291ad1d7d532c6677fd5909b9
 F test/fuzzdata1.db 3e86d9cf5aea68ddb8e27c02d7dfdaa226347426c7eb814918e4d95475bf8517
 F test/fuzzdata2.db 128b3feeb78918d075c9b14b48610145a0dd4c8d6f1ca7c2870c7e425f5bf31f
 F test/fuzzdata3.db c6586d3e3cef0fbc18108f9bb649aa77bfc38aba
@@ -1152,7 +1152,7 @@ F test/fuzzdata8.db f6c2f2af4deaaae0ddb3310d509c2659990794aa653dc501b80a0534c349
 F test/fuzzer1.test 3d4c4b7e547aba5e5511a2991e3e3d07166cfbb8
 F test/fuzzer2.test a85ef814ce071293bce1ad8dffa217cbbaad4c14
 F test/fuzzerfault.test f64c4aef4c9e9edf1d6dc0d3f1e65dcc81e67c996403c88d14f09b74807a42bc
-F test/fuzzinvariants.c a153253600b2b33a7d5710d40e89b2ac1373a1912517867fb995a45b2d67dcb8
+F test/fuzzinvariants.c 3ec82ac4277a0c62918f39e7a35893d6fb5ed57c465a938ad18e8e7a69527615
 F test/gcfault.test dd28c228a38976d6336a3fc42d7e5f1ad060cb8c
 F test/gencol1.test e40c94c0d3485c37c23ec8ff42dbb4464cef3f3e41d96ef1abf9c4f2b97936c9
 F test/genesis.tcl 1e2e2e8e5cc4058549a154ff1892fe5c9de19f98
@@ -2048,8 +2048,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P af312b131457743d98b84137bd51d9ba60e0daf0bd8f5a66f05956ca35ab68fb
-R ad7078f08d1f30e27457cbb0b25465a3
+P 83e84531b46814aea6dad1ce8283cb9f6b90ad52badb60b875ea8f66e4ac0925
+R f88f50a654bf2b41e280183e1005cba0
 U drh
-Z f646de84c6f7cf615b430f5fcccad8cd
+Z 7f97178f4b5f9f04d04c9231829a35aa
 # Remove this line to create a well-formed Fossil manifest.

diff --git a/manifest.uuid b/manifest.uuid
index 238d5abcd3f95cb85b7dcd0674a8d22902b3266b..36245292778a9bf90d56dce8e24a710d03009fe2 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-83e84531b46814aea6dad1ce8283cb9f6b90ad52badb60b875ea8f66e4ac0925
\ No newline at end of file
+be9ab292cd14889b1c9648b47138260b33fe5be282ff2d90653b1387885a7d02
\ No newline at end of file

diff --git a/test/fuzzcheck.c b/test/fuzzcheck.c
index 65dd2fa7224d72af68dcfe953f6831d2130e03e8..9f509306b79165cff01ab345ba43ea5fc5e25efc 100644 (file)
--- a/test/fuzzcheck.c
+++ b/test/fuzzcheck.c
@@ -1001,12 +1001,14 @@ static int recoverSqlCb(void *pCtx, const char *zSql){
 */
 static int recoverDatabase(sqlite3 *db){
   int rc;                                 /* Return code from this routine */
+  const char *zRecoveryDb = "";           /* Name of "recovery" database */
   const char *zLAF = "lost_and_found";    /* Name of "lost_and_found" table */
   int bFreelist = 1;                      /* True to scan the freelist */
   int bRowids = 1;                        /* True to restore ROWID values */
-  sqlite3_recover *p;                     /* The recovery object */
+  sqlite3_recover *p = 0;                 /* The recovery object */
 
   p = sqlite3_recover_init_sql(db, "main", recoverSqlCb, 0);
+  sqlite3_recover_config(p, 789, (void*)zRecoveryDb);
   sqlite3_recover_config(p, SQLITE_RECOVER_LOST_AND_FOUND, (void*)zLAF);
   sqlite3_recover_config(p, SQLITE_RECOVER_ROWIDS, (void*)&bRowids);
   sqlite3_recover_config(p, SQLITE_RECOVER_FREELIST_CORRUPT,(void*)&bFreelist);
@@ -1038,7 +1040,7 @@ static int runDbSql(sqlite3 *db, const char *zSql, unsigned int *pBtsFlags){
     printf("RUNNING-SQL: [%s]\n", zSql);
     fflush(stdout);
   }
-  (*pBtsFlags) &= ~BTS_BADPRAGMA;
+  (*pBtsFlags) &= BTS_BADPRAGMA;
   rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
   if( rc==SQLITE_OK ){
     int nRow = 0;

diff --git a/test/fuzzinvariants.c b/test/fuzzinvariants.c
index 883f8cdfc9d4f7e2ac888dcb774c032fbf479517..0a5f607148dd3f41c727f14bce4580c601a83048 100644 (file)
--- a/test/fuzzinvariants.c
+++ b/test/fuzzinvariants.c
@@ -115,6 +115,8 @@ int fuzz_invariant(
   if( rc==SQLITE_DONE ){
     /* No matching output row found */
     sqlite3_stmt *pCk = 0;
+    int iOrigRSO;
+
 
     /* This is not a fault if the database file is corrupt, because anything
     ** can happen with a corrupt database file */
@@ -136,28 +138,24 @@ int fuzz_invariant(
     }
     sqlite3_finalize(pCk);
 
-    if( sqlite3_strlike("%group%by%",sqlite3_sql(pStmt),0)==0 ){
-      /* 
-      ** If there is a GROUP BY clause, it might not cover every term in the
-      ** output.  And then non-covered terms can take on a value from any
-      ** row in the result set.  This can cause differing answers.
-      */
-      goto not_a_fault;
+    /*
+    ** If inverting the scan order also results in a miss, assume that the
+    ** query is ambiguous and do not report a fault.
+    */
+    sqlite3_db_config(db, SQLITE_DBCONFIG_REVERSE_SCANORDER, -1, &iOrigRSO);
+    sqlite3_db_config(db, SQLITE_DBCONFIG_REVERSE_SCANORDER, !iOrigRSO, 0);
+    sqlite3_prepare_v2(db, sqlite3_sql(pStmt), -1, &pCk, 0);
+    sqlite3_db_config(db, SQLITE_DBCONFIG_REVERSE_SCANORDER, iOrigRSO, 0);
+    while( (rc = sqlite3_step(pCk))==SQLITE_ROW ){
+      for(i=0; i<nCol; i++){
+        if( !sameValue(pStmt, i, pTestStmt, i, 0) ) break;
+      }
+      if( i>=nCol ) break;
     }
-
-    if( sqlite3_strlike("%limit%)%order%by%", sqlite3_sql(pTestStmt),0)==0 ){
-      /* crash-89bd6a6f8c6166e9a4c5f47b3e70b225f69b76c6
-      ** Original statement is:
-      **
-      **    SELECT a,b,c* FROM t1 LIMIT 1%5<4
-      **
-      ** When running:
-      **
-      **    SELECT * FROM (...) ORDER BY 1
-      **
-      ** A different subset of the rows come out
-      */
-      goto not_a_fault;
+    sqlite3_finalize(pCk);
+    if( rc==SQLITE_DONE ){
+      sqlite3_finalize(pTestStmt);
+      return SQLITE_DONE;
     }
 
     /* The original sameValue() comparison assumed a collating sequence