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108 check-ins using file src/vdbe.c version 1266f3a4
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2022-08-03
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| 19:37 | Small performance increase on the binding interfaces. (check-in: aab24c37 user: drh tags: trunk) | |
| 17:26 | Improvement on the previous check-in. (check-in: c1ab0ea2 user: drh tags: trunk) | |
| 15:58 | For an IN operator used with a RIGHT JOIN, use the number of terms in the vector, not the number of equality terms, to size the column map. dbsqlfuzz 14cfdad6ca45e607163f54049ddf5065183dc657, CVE-2022-3195. This problem was injected by [a193749730d6cfba] which was part of the RIGHT JOIN enhancement for version 3.39.0. (check-in: b184c8d9 user: drh tags: trunk) | |
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2022-08-01
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| 13:14 | In the xUpdate method of the GeoPoly virtual table, make sure that the number of updated columns does not exceed the underlying implementation, even if the virtual table object records an excess number of column in the nAux field due to table constraints in the table definition. Fix for the problem reported by forum post a096ab7d96bb057a. A test case for this problem is in dbsqlfuzz. (check-in: a04dd475 user: drh tags: trunk) | |
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2022-07-26
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| 19:10 | Restore a VDBE coverage macro that is mistakenly deleted for check-in [92ac01d41d46ab73]. (check-in: 01de7ec4 user: drh tags: trunk) | |
| 18:43 | Fix another problem related to aggregate query LEFT JOIN flattening. (check-in: 8e12c6f5 user: dan tags: trunk) | |
| 15:41 | Omit a unused variable initialization in order to suppress a harmless compiler warning. (check-in: 2d703c5e user: drh tags: trunk) | |
| 15:39 | Add test cases related to fix [e717e029]. (Closed-Leaf check-in: 2909f36b user: dan tags: flatten-left-join) | |
| 15:32 | Make sure IF_NULL_ROW expressions receive a separate slot in the sorter used to implement GROUP BY. (check-in: 2bda4fca user: drh tags: flatten-left-join) | |
| 14:37 | Improved AggInfo.aCol debugging output, intended to debug a problem with LEFT JOIN flattening into an aggregate query with GROUP BY. (check-in: e717e029 user: drh tags: flatten-left-join) | |
| 10:16 | Add a OOM term to a single assert() statement. (check-in: 217fc3eb user: drh tags: trunk) | |
| 01:20 | Performance optimization: avoid unnecessary calls to computeLimitRegisters(). (check-in: f48bd8f8 user: drh tags: trunk) | |
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2022-07-25
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| 23:34 | Fix an assert() that was made out-of-date by [b52393ac28debe98]. (check-in: db8230e8 user: drh tags: trunk) | |
| 23:01 | Performance optimization by only invoking sqlite3FkCheck() when it is actually needed. (check-in: 98b0e830 user: drh tags: trunk) | |
| 22:31 | Performance optimization in sqlite3ViewGetColumnNames(). (check-in: 390717e6 user: drh tags: trunk) | |
| 22:02 | Fix a harmless compiler warning. (check-in: 9aba7417 user: drh tags: trunk) | |
| 21:37 | In-line a call to sqlite3ExprCode() in insert.c, for a size reduction and performance increase. (check-in: 35066b14 user: drh tags: trunk) | |
| 20:21 | Performance optimization in computing the Expr.nHeight field. (check-in: 1798ce97 user: drh tags: trunk) | |
| 19:05 | Small performance increase and size reduction by splitting out the sqlite3VdbeGetLastOp() from sqlite3VdbeGetOp(). (check-in: 92ac01d4 user: drh tags: trunk) | |
| 16:06 | Fix an error in the aggregate query LEFT JOIN flattening optimization from [2cf373b10c9bc4cb] and further enhance that optimization so that it works even if there is a GROUP BY clause. (check-in: b52393ac user: drh tags: trunk) | |
| 15:54 | Allow subqueries on the right-hand side of a LEFT JOIN to be flattened even if they contain a GROUP BY clause. (Closed-Leaf check-in: 816da9a8 user: drh tags: flatten-left-join) | |
| 14:05 | TK_IF_NULL_ROW expressions must be accumulated in the same way as TK_COLUMN expressions in an aggregate query. Proposed fix for the problem identifyed by dbsqlfuzz 8e17857db2c5a9294c975123ac807156a6559f13. (check-in: 40d08807 user: drh tags: flatten-left-join) | |
| 11:19 | If the LHS of a LEFT JOIN is flattened into an aggregate parent query, avoid executing OP_IfNullRow on an unopened cursor by disallowing the index-only optimization. (Later:) Does not work if automatic indexes are disabled. (Closed-Leaf check-in: dbe522b0 user: dan tags: nonworking-flatten-left-join) | |
| 11:04 | Reduce a timeout in walsetlk.test from 2000ms to 1100ms so that the test runs a bit faster. (check-in: 836fa097 user: dan tags: trunk) | |
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2022-07-23
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| 12:51 | Simplifications to sqlite3FinishCoding() for a small size reduction and performance increase. (check-in: a995614b user: drh tags: trunk) | |
| 00:53 | Remove a branch that is no longer reachable due to the previous check-in. (check-in: 8b4d1b93 user: drh tags: trunk) | |
| 00:44 | Use sqlite3ParserAddCleanup() rather than pParse->pConstExpr to implement sqlite3ExprDeferredDelete(). This is a better solution than check-in [c538d07535092722]. (check-in: 2a6f6971 user: drh tags: trunk) | |
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2022-07-22
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| 20:48 | Updates to the 'vtshim' extension. (Leaf check-in: 163c6cdf user: mistachkin tags: xShadowName2) | |
| 20:24 | Add experimental 'xShadowName2' method for virtual table modules. (check-in: 57beb700 user: mistachkin tags: xShadowName2) | |
| 19:28 | Omit the EP_MemToken flag that was made obsolete by [e1f1cfe7f4387b60], for a size reduction and performance increase. (check-in: 28934a9d user: drh tags: trunk) | |
| 18:25 | In a TK_BLOB Expr node, the Expr.zToken might not be a well-formed BLOB literal if there has been a prior OOM. dbsqlfuzz 23871e5805d6c45b392f9b7aa1e8a2b98f3c27cd. (check-in: c538d075 user: drh tags: trunk) | |
| 14:52 | Update the documentation for SQLITE_OPEN_NOFOLLOW to state more clearly that nothing in the database path is allowed to be a symbolic link. (check-in: de922269 user: drh tags: trunk) | |
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2022-07-21
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| 18:37 | Fix harmless compiler warning seen with MSVC. (check-in: 648172de user: mistachkin tags: trunk) | |
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2022-07-20
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| 20:36 | Make use of the sqlite3ExprDeferredDelete() interface in the previous check-in, and in another place where it might be helpful. (check-in: 22f90e96 user: drh tags: trunk) | |
| 16:42 | Simplify the logic that converts the "1" expression in "ORDER BY 1" into a copy of the expression that defines the first output column. Fix for CVE-2022-3034. Test case in TH3. (check-in: e1f1cfe7 user: drh tags: trunk) | |
| 10:09 | Merged in trunk. (check-in: d662796c user: stephan tags: wasm-cleanups) | |
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2022-07-19
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| 21:12 | Improve accuracy of julian day milliseconds calculation. (check-in: e5e93118 user: larrybr tags: trunk) | |
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2022-07-18
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| 19:32 | Remove a few unsuitable scripts from the "veryquick" test suite. Also have every second testrunner.tcl process favour running test scripts that contain text like "testrunner: slow" before any others. (check-in: 22d280a5 user: dan tags: trunk) | |
| 18:13 | Add the "testrunner" makefile target. (check-in: 954c6593 user: drh tags: trunk) | |
| 15:02 | Increase the size of loop variables in the printf() implementation to avoid integer overflow on multi-gigabyte string arguments. CVE-2022-35737. (check-in: aab790a1 user: drh tags: trunk) | |
| 13:55 | Enhance the REGEXP extension so that it will accept the start-of-input mark ("^") in the middle of parentheses. Forum post 0d6a9160f81ef1a8. (check-in: ed8a8ebd user: drh tags: trunk) | |
| 13:10 | Fix a problem in the REGEXP extension for the {M,N} construct where M is zero. See forum post 8694e55a2c29963c for more information. (check-in: af15bb75 user: drh tags: trunk) | |
| 11:44 | Enhance the ext/misc/regexp.c code so that when it is compiled with SQLITE_DEBUG, a new function named regexp_bytecode() is available that prints out the compiled NFA as human-readable text, for debugging purposes. (check-in: cb5c0897 user: drh tags: trunk) | |
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2022-07-16
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| 18:08 | Fixes for the generated "mallocs.tcl" and "leaks.tcl" scripts generated by running tcl tests with the --malloctrace=1 option. (check-in: 449799e2 user: dan tags: trunk) | |
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2022-07-15
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| 20:39 | In the query planner, restore the former aggressiveness in reordering of FROM clause terms that existed prior to version 3.39.0 for queries that contain no RIGHT or FULL JOINs. (check-in: 92d60b64 user: drh tags: trunk) | |
| 15:08 | Fix a memory leak in fts3 that could occur when processing a corrupt database. (check-in: d74f6f6d user: dan tags: trunk) | |
| 12:16 | Fix the whereKeyStats() routine (part of STAT4 processing only) so that it is able to cope with row-value comparisons against the primary key index of a WITHOUT ROWID table. Forum post 3607259d3c. (check-in: 0620e419 user: drh tags: trunk) | |
| 11:34 | Update some faulty assert() statements in fts3. (check-in: b072851b user: dan tags: trunk) | |
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2022-07-14
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| 21:17 | Ensure all testrunner.tcl processes use the same pending-byte value when accessing testrunner.db. Otherwise locking doesn't work and the db is corrupted. (check-in: b6522565 user: dan tags: trunk) | |
| 18:09 | Update testrunner.tcl so that it can run the test suites defined in permutation.test. (check-in: 15ce937e user: dan tags: trunk) | |
| 01:48 | When applying the omit-ORDER-BY optimization [85ddaf1b59a19cbd], defer deleting the AST of the deleted ORDER BY clause until after code generation ends. Fix for CVE-2022-3039. Test case in TH3. (check-in: f22f95b8 user: drh tags: trunk) | |
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2022-07-13
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| 21:28 | Fix testrunner.tcl so that it can detect the number of logical cores on osx. (check-in: 14918f28 user: dan tags: trunk) | |
| 21:10 | Minor change to help message in testrunner.tcl. (check-in: e4f9cb01 user: dan tags: trunk) | |
| 21:02 | Add new script test/testrunner.tcl. For running a set of test scripts using multiple processes. (check-in: 0122e93d user: dan tags: trunk) | |
| 20:26 | Fix a problem preventing "testrunnter.tcl all" from working. (Closed-Leaf check-in: 0ed1e83c user: dan tags: testrunner) | |
| 19:57 | Update testrunner.tcl to allow the user to specify which tests to run on the command line. (check-in: 900febcf user: dan tags: testrunner) | |
| 17:46 | Fix testrunner.tcl so that it checks for memory leaks. (check-in: 106f6724 user: dan tags: testrunner) | |
| 15:52 | The query flattener should not run if the subquery is a compound that contains a RIGHT JOIN in any arm and the subquery is not the first element of the outer query. Otherwise, prior elements of the outer query will not have the JT_LTORJ flag set. Fix for the problem reported in forum post 174afeae5734d42d. (check-in: 274e244c user: drh tags: trunk) | |
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2022-07-12
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| 20:31 | Add test/testrunner.tcl, an experimental script for distributing the work of veryquick.test between multiple processes. (check-in: ef229cbb user: dan tags: testrunner) | |
| 15:53 | Renamed the SQLITE_SHELL_WASM_WEB_MODE to SQLITE_SHELL_FIDDLE, which seems to be more in line with project convensions and indicates that that flag is only intended for /fiddle mode, as opposed to arbitrary wasm-on-the-web use. (check-in: d1d019bf user: stephan tags: trunk) | |
| 15:17 | Fix another test case error message similar to those fixed in [b3d6b3c3]. (check-in: 6d0f6772 user: dan tags: trunk) | |
| 15:10 | Update makefiles to fix building the non-amalgamation testfixture with SQLITE_DEBUG. (check-in: d9c4a9d0 user: dan tags: trunk) | |
| 10:46 | Fix a bug in wapptest.tcl introduced by [51255bad4c1fb607]. (check-in: b26d097e user: drh tags: trunk) | |
| 09:40 | Renamed SQLITE_SHELL_WASM_MODE to SQLITE_SHELL_WASM_WEB_MODE and no longer automatically enable it if __EMSCRIPTEN__ is defined, in order to facilitate using Emscripten to build the shell for CLI-based WASM runtimes (which cannot make use of the web-specific user input changes). The fiddle build now explicitly passes the new flag on at compile-time. (check-in: ee059ad5 user: stephan tags: trunk) | |
| 07:13 | Back out the pager performance enhancement at [a1c090e08139f99d3], because it turns out we should never allow a zero key into the pcache interface according to the design specs, even if that page is immediately released without ever being used. (check-in: ec96293e user: drh tags: trunk) | |
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2022-07-11
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| 22:20 | Add the --config option to wapptest.tcl. The argument is a glob pattern. All configurations must match the glob pattern in order to run. The default value is "*". (check-in: 51255bad user: drh tags: trunk) | |
| 21:40 | Update the expected error messages in some OOM test cases to account for [44d77a7f807]. (check-in: b3d6b3c3 user: dan tags: trunk) | |
| 19:47 | Use 64-bit memory allocation APIs in the sqlite_stmt virtual table, to avoid harmless compiler warnings. (check-in: afb9e60e user: drh tags: trunk) | |
| 19:12 | In the sqlite_stmt extension, store the result of strlen() in a 64-bit integer to avoid a compiler warning, even though we know that the length will always fit comfortably in 32 bits. (check-in: 3fe19452 user: drh tags: trunk) | |
| 18:26 | Fix harmless compiler warnings about unused debugging functions in treeview.c. (check-in: 4d6f9077 user: drh tags: trunk) | |
| 18:11 | Back out the optimization at [1a8c2e54375ee2cf7] because there are some cases where it does not work. (check-in: fe39c8d5 user: drh tags: trunk) | |
| 14:36 | Ensure that the Parse.nErr flag is set following an SQLITE_TOOBIG error on a nested parse. Fix for the problem identified by forum post d5a82ba9eedee30c. Also, remove unnecessary clearing of the Parse.zErrMsg field following a nested parse. (check-in: 44d77a7f user: drh tags: trunk) | |
| 14:26 | Fix a problem in fts3 to do with deferred tokens and OR expressions. (check-in: d0bfe5c5 user: dan tags: trunk) | |
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2022-07-10
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| 21:12 | When an OOM occurs and sets the Parse.nErr value, also set the Parse.nErr value for all outer Parse objects. dbsqlfuzz d33f60aaa67733aa700cd69dacf8e0e23a327a29 (check-in: 9a494d25 user: drh tags: trunk) | |
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2022-07-08
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| 20:03 | Performance optimizations in the WHERE clause processing of the query planner. (check-in: 50c8e8de user: drh tags: trunk) | |
| 18:23 | Omit an unnecessary structure initialization in whereLoopAddAll(), replacing it with an assert() to show that the initialization has already occurred, for a small performance increase and size reduction. (check-in: 27be9e96 user: drh tags: trunk) | |
| 17:57 | Size reduction and performance optimization in whereLoopAddBtreeIndex(). (check-in: 64d2312c user: drh tags: trunk) | |
| 16:56 | In wherePathSolver(), defer initializing variables until they are actually needed, in case they are not needed. This gives a small performance increase. (check-in: 6f28a965 user: drh tags: trunk) | |
| 15:06 | Upgrade the TEA build system used to build the Tcl package. (check-in: ace65da8 user: dan tags: trunk) | |
| 13:57 | Fix typo in autoconf/tea/win/makefile.vc. (Closed-Leaf check-in: 094b2aad user: dan tags: tea-upgrade) | |
| 11:55 | Remove an obsolete statement from a comment. No changes to code. (check-in: 99afb3f4 user: drh tags: trunk) | |
| 11:21 | Update options in the TEA package msvc makefile to match other builds. (check-in: d72e12b9 user: dan tags: tea-upgrade) | |
| 11:14 | Update the build options used for the TEA package to match those used to build the binaries at download.html. (check-in: 9d6d9dba user: dan tags: tea-upgrade) | |
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2022-07-07
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| 22:59 | Very small size reduction and performance increase in btree.c. (check-in: 9a7c031a user: drh tags: trunk) | |
| 21:04 | Size reduction and performance increase in defragementPage() of btree.c. (check-in: 1b03f197 user: drh tags: trunk) | |
| 20:49 | Upgrade the TEA build system in autoconf/tea/. To match tclconfig commit 20fe9e6f59 and Tcl Sample Extension be47fb0446. (check-in: 1531f739 user: dan tags: tea-upgrade) | |
| 20:29 | Size reduction and performance increase in the pageFindSlot() routine of btree.c. (check-in: 5d247e38 user: drh tags: trunk) | |
| 20:11 | Size reduction and performance increase in the freeSpace() routine of btree.c. (check-in: 7d7aed05 user: drh tags: trunk) | |
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2022-07-06
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| 23:50 | Fix harmless compiler warnings seen with MSVC. (check-in: 61e2094a user: mistachkin tags: trunk) | |
| 15:44 | Avoid ignoring the last line of a csv file if the final field is empty and there is no trailing CFLS. Also have the csv extension treat the last line of a file in the same way as any other line if it is short fields. (check-in: 587795d4 user: dan tags: trunk) | |
| 13:59 | Avoid dropping error codes in the xBegin() method of virtual table sqlite_dbpage. (check-in: 570e2bce user: dan tags: trunk) | |
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2022-07-05
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| 19:53 | Fix for builds with both SQLITE_DEBUG and SQLITE_OMIT_WINDOWFUNC defined. (check-in: 77916947 user: dan tags: trunk) | |
| 17:49 | Fix a problem in the csv extension that was triggered when the very first field in the csv file is zero bytes in size. (check-in: b12ddabf user: dan tags: trunk) | |
| 10:40 | Fix an assert() in btree to be more precise, as the previous form of that asser might fail due to recent performance optimizations. (check-in: 47749381 user: drh tags: trunk) | |
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2022-07-04
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| 15:14 | Size reduction and performance optimization in sqlite3WalFindFrame(). (check-in: 1a8c2e54 user: drh tags: trunk) | |
| 09:41 | In the getNormalPage() routine of pager.c, consolidate pgno error checking into a single spot for small size reduction and performance increase. (check-in: a1c090e0 user: drh tags: trunk) | |
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2022-07-03
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| 18:12 | Enhance the REGEXP extension so that the end-of-input indicate ("$") is allowed to occur on one branch of an OR ("|"). Forum post 0107d5d40dd273e2, second issue. (check-in: 3c04d21e user: drh tags: trunk) | |
| 14:25 | Fix the initial-prefix optimization for the REGEXP extension such that it works even if the prefix contains characters that require a 3-byte UTF8 encoding. This should fix the problem reported by forum post 96692f8ba5. (check-in: c94595a6 user: drh tags: trunk) | |
| 11:16 | Improved comment on sqlite3VdbeSwap(). No changes to code. (check-in: 6a8e4fb7 user: drh tags: trunk) | |
| 11:12 | Remove debugging code that has always been commented out. Cosmetic change. (check-in: b5406417 user: drh tags: trunk) | |
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2022-07-01
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| 21:03 | Do not attempt the OP_Count optimization on queries with HAVING clauses. This fixes a problem exposed by [2cf373b10c9bc4cb]. (check-in: 566b7842 user: dan tags: trunk) | |
| 19:42 | Performance improvement in resolveP2Values(). Save over 1 million CPU cycles by omitting the loop termination condition and exiting when the OP_Init (always the first opcode in any VDBE program) is encountered. (check-in: bb179140 user: drh tags: trunk) | |
| 12:09 | In the sqlite_stmt virtual table, add two ALWAYS() macros on branches that have been come always true due to the [84a91c255e3d7772] optimization. REVISED: Dbsqlfuzz found a case where the ALWAYS() is false. (Closed-Leaf check-in: bf34eddb user: drh tags: mistake) | |
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2022-06-30
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| 22:46 | Small performance improvement to sqlite3_finalize(). (check-in: 8a6913b6 user: drh tags: trunk) | |
| 11:01 | Add missing "finish_test" command to the end of test script merge1.test. (check-in: 13cb3f1e user: dan tags: trunk) | |
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2022-06-29
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| 15:16 | Have the sqlite_stmt table buffer all data for the current scan within the xFilter method. (check-in: 84a91c25 user: dan tags: trunk) | |
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2022-06-27
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| 11:28 | Fix a missing dependency for json.lo in Makefile.in (check-in: 65930a5c user: drh tags: trunk) | |
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2022-06-25
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| 20:32 | Put an ALWAYS() on an unreachable branch. (check-in: 58caa50a user: drh tags: trunk) | |