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100 check-ins occurring around 75d665a494dd7d6e.

2019-08-29
16:48
Add a missing VdbeCoverage() macro. check-in: 33da6092 user: drh tags: trunk
16:17
Remove an unreachable branch in the NULLS LAST logic of RANGE window functions. check-in: 47cd634c user: drh tags: trunk
15:50
Fix another case where SQLite assumes that if "~(? AND FALSE)" is true, "?" must be non-null. check-in: 616f5663 user: dan tags: trunk
15:06
Avoid assuming that for "~ (? AND FALSE)" to be true, "?" must not be NULL, just as we do for "NOT (? AND FALSE)". Fix for ticket [c0390363]. check-in: 84ae41fd user: dan tags: trunk
14:25
Fix a potential buffer overrun in fts5 caused by corrupted database records. check-in: c465d0eb user: dan tags: trunk
00:27
Improve Lemon so that it enlarges some of its tables slightly in order to avoid having to index range checks on table lookups for a performance increase. check-in: 4be6a23a user: drh tags: trunk
2019-08-28
11:49
Fix an unreachable branch in sqlite3ParserFallback() Closed-Leaf check-in: e059178b user: drh tags: lemon-optimization
11:31
Further improvements to parser speed by enlarging lookup tables to eliminate the need to do range checking on the index prior to lookup. check-in: 47d3e091 user: drh tags: lemon-optimization
02:09
Increase the size of the yy_lookahead table so that it is never necessary to down bounds checking on the index. check-in: bafd8723 user: drh tags: lemon-optimization
2019-08-27
19:59
Add support for "ORDER BY ... NULLS FIRST" and "ORDER BY ... NULLS LAST". Use this to fix ticket [f8a7060e]. check-in: 94085fb3 user: dan tags: trunk
17:59
The ALWAYS() added by the previous check-in was incorrect. Take it back out. check-in: 336235db user: drh tags: trunk
17:28
Add ALWAYS() to an always true conditional that results from the previous check-in. Add a test case for ticket [dbaf8a6820be1ece] to supplement those already checked into TH3. check-in: aff20980 user: drh tags: trunk
17:01
Omit the "x IN (y)" to "x==y" optimization of check-in [e68b427afbc82e20] (and ticket [e39d032577df6942]) as it causes difficult affinity problems as demonstrated by ticket [dbaf8a6820be1ece] and the original assertion fault is no longer a factor due to countless other changes of the previous 5 years. check-in: 7f5168a7 user: drh tags: trunk
10:05
If a TEMP TRIGGER references an auxiliary schema, and that auxiliary schema is detached, move the trigger to reference the TEMP schema before completing the detach, so that the trigger does not hold a dangling schema pointer. Ticket [ac8dd4a32ba4322f] check-in: 069c2f4c user: drh tags: trunk
2019-08-26
20:41
Merge in recent fixes from trunk. Closed-Leaf check-in: ad816d01 user: drh tags: nulls-last
14:57
Tweak the shell tool ".recover" command so that it can recover rows that consist of a rowid and no fields. check-in: 279ac7fd user: dan tags: trunk
14:18
Improved detection of number of column mismatch for vector assignment in UPDATE statements. Ticket [78acc9d40f0786e8] check-in: bd4bda73 user: drh tags: trunk
13:45
Fix typo in a comment. No code changes. check-in: d0cc06d8 user: drh tags: trunk
12:50
Enforce 80-character line discipline in the CLI. Minor improvements to the CLI built-in help. check-in: 9690013a user: drh tags: trunk
2019-08-24
21:02
Minor performance improvement for balance_nonroot(). check-in: d7434cae user: dan tags: trunk
17:11
Fix a potential buffer overrun in fts5 caused by corrupt database records. check-in: 156d6128 user: dan tags: trunk
2019-08-23
23:05
Fix the built-in edit() SQL function in the CLI so that it works with zero-length blobs. check-in: e3249012 user: drh tags: trunk
21:11
Attempt to parse the NULLS LAST clause more efficiently. A few cycles were saved, but at the expense of more code. And there is a bug was introduced somewhere. Not worth continuing down this line. Closed-Leaf check-in: 12d2cf88 user: drh tags: dead-end
20:33
Move some things in parse.y so that TK_COLUMN and TK_AGG_COLUMN are assigned the same values as they are on trunk for a very small speedup. check-in: d26fdfa3 user: dan tags: nulls-last
17:09
Revise the VDBE comments for NULL-scan so that they also work make sense when reading a NULLS FIRST plan. check-in: bfe79378 user: drh tags: nulls-last
17:00
Additional simplifications of the WHERE loop code generator logic for NULLS LAST. check-in: 1383680d user: drh tags: nulls-last
16:12
Simplification of the WHERE loop code generator for NULLS LAST saves a few CPU cycles and about a hundred bytes of code space. check-in: e3ed2f49 user: drh tags: nulls-last
13:32
Invert the meaning of the regBignull flag so that it is 1 when doing the normal scan and 1 when scanning nulls. This enables the re-do jump at the bottom of the loop to be coded with a single OP_IfNotZero opcode, rather than a sequence of OP_If, OP_Integer, OP_Goto. check-in: bf875e1a user: drh tags: nulls-last
13:08
Extra VDBE comments in the NULLS LAST logic provide landmarks to help understand the EXPLAIN output. check-in: 649b08ea user: drh tags: nulls-last
2019-08-22
21:13
Add additional VDBE coverage macros. check-in: d3531f5b user: drh tags: nulls-last
19:35
Merge fixes from trunk. Also fix a reference to the KeyInfo.aSortOrder field, which should now be KeyInfo.aSortFlags check-in: 63e625c8 user: drh tags: nulls-last
16:38
Fix the likely(), unlikely(), and likelihood() functions so that they have no affinity, just like any other function. Ticket [7e07a3dbf5a8cd26] check-in: 44578865 user: drh tags: trunk
11:11
Fix a false-positive in sqlite3ExprNeedsNoAffinityChange(). Ticket [ac184eb571d5e6e0] check-in: e62eddbb user: drh tags: trunk
00:53
Fix the OP_SeekGE, OP_SeekGT, OP_SeekLE, and OP_SeekLT opcodes so that they preserve the datatype of the value in the register used as the key. Ticket [d9f584e936c7a8d0] check-in: 81b9f0f5 user: drh tags: trunk
2019-08-21
19:58
Add missing VdbeCoverage() macros to new code. check-in: b1cbcdc6 user: dan tags: nulls-last
17:46
Disable broken test case in expert1.test. check-in: 73e30c2e user: dan tags: nulls-last
15:41
Update this branch with latest trunk changes. check-in: 6153bcf4 user: dan tags: nulls-last
14:54
Avoid assuming that "column IS ?", where column is declared UNIQUE, matches only a single row (as "?" might be NULL). Fix for [b8689402]. check-in: d02490a2 user: dan tags: trunk
11:31
Fix a broken assert() in the fts3 snippet code that was failing for queries containging more than 64 phrases. check-in: 4c01e017 user: dan tags: trunk
2019-08-20
20:09
Further tests for the special null-handling on this branch. check-in: 0dbbb51f user: dan tags: nulls-last
19:11
Fix a problem with fts5 "ORDER BY rank" queries when the fts5 table name requires quoting. check-in: 00e9a8f2 user: dan tags: trunk
17:51
Add tests for sort-by-index cases that use IN() and non-default NULL handling. check-in: 09d660ec user: dan tags: nulls-last
17:14
Bring the hard-heap-limit branch up-to-date with trunk. Leaf check-in: 9b14eb77 user: drh tags: hard-heap-limit
15:47
Do not pass ORDER BY clauses with non-standard NULL handling to virtual table implementations. check-in: a9a82ee8 user: dan tags: nulls-last
14:43
Fix a segfault that could occur following an OOM while processing a SELECT statement for which one or more of the expressions in the window frame declaration are themselves sub-selects that use window functions. check-in: 75aec4fc user: dan tags: trunk
13:49
Add the new sqlite3_drop_modules() interface to the loadable extension mechanism. check-in: 658bd516 user: drh tags: trunk
11:43
Retain the affinity of an expression in a WHERE clause when it is transformed to a reference to an index column on the same expression. Fix for [f043b113]. check-in: 511da081 user: dan tags: trunk
02:19
Fix a typo and a harmless compiler warning. check-in: ec4c63e0 user: mistachkin tags: trunk
2019-08-19
20:44
Add the sqlite3_drop_modules() interface. check-in: e2c6fed8 user: drh tags: trunk
20:35
Omit the "_except" term from the name of the new interface. Closed-Leaf check-in: e5ba47c2 user: drh tags: sqlite3_drop_modules_except
19:59
Fix problems with window frames that use ORDER BY ... NULLS LAST etc. check-in: 75d665a4 user: dan tags: nulls-last
17:26
Prevent NULLS FIRST/LAST from being used in CREATE INDEX and other statements. check-in: bb9767a2 user: dan tags: nulls-last
2019-08-17
19:58
Add some extra tests for the lsm virtual table module. check-in: 4cb009b0 user: dan tags: trunk
19:55
Fix to the query planner for the LSM1 extension. check-in: 7496e872 user: drh tags: trunk
19:45
The experimental sqlite3_drop_modules_except() interface. check-in: 0851db4d user: drh tags: sqlite3_drop_modules_except
19:31
Fix the new ability to unregister virtual table modules so that it works for the automatic PRAGMA virtual tables. check-in: 5d6f4dfe user: drh tags: trunk
19:13
When populating an ephemeral b-tree for the RHS of an IN(...) clause, avoid applying an affinity to a value that may be used later on for some other purpose. Fix for [c7a117190]. check-in: 43e8b143 user: dan tags: trunk
18:16
Add tests to ensure that this branch really does fix ticket [f8a7060ece]. check-in: f8920664 user: dan tags: nulls-last
17:55
Fix problem with DESC indexes on this branch. check-in: b49df1fe user: dan tags: nulls-last
17:07
Ensure the functions that appear to be constant are not factored out of expression that originate on the right-hand side of a LEFT JOIN. Ticket [6710d2f7a13a2997] check-in: 500c9152 user: drh tags: trunk
15:47
Merge trunk changes into this branch. check-in: db1e6080 user: dan tags: nulls-last
15:27
Activate introspection pragmas by default. The new option SQLITE_OMIT_INTROSPECTION_PRAGMAS must be provided to keep them out. check-in: 9c4bca64 user: drh tags: trunk
00:53
The SQLITE_DIRECTONLY flag, when added to sqlite3_create_function() prevents the function from being used inside a trigger or view. check-in: de767376 user: drh tags: trunk
2019-08-16
22:58
Add the ability to unregister a virtual table module by invoking sqlite3_create_module() with a NULL sqlite3_module pointer. check-in: 31e34fa3 user: drh tags: trunk
21:07
Add support for using indexes for some ORDER BY clauses that use non-default NULL handling. Still some problems on this branch. check-in: 81069d71 user: dan tags: nulls-last
2019-08-15
23:11
Fix harmless compiler warnings in the TCL interface. check-in: f17e7229 user: drh tags: trunk
21:27
Add the SQLITE_DBCONFIG_ENABLE_VIEW option, together with a "db config" command in the TCL interface that can access that option as well as all the other sqlite3_db_config() boolean options. check-in: 61b4bccd user: drh tags: trunk
20:04
Provide the SQLITE_DIRECTONLY flag for app-defined functions that prohibits the use of those functions within triggers or views. Closed-Leaf check-in: fc745845 user: drh tags: directonly
14:35
Ensure that the optional "sz=N" parameter that can be manually added to the end of an sqlite_stat1 entry does not have an N value that is too small. Ticket [e4598ecbdd18bd82] check-in: 98357d8c user: drh tags: trunk
13:53
Ensure that SQLite does not attempt to process incompatible window functions in a single scan. Fix for [256741a1]. check-in: 4f5b2d93 user: dan tags: trunk
13:46
Avoid downgrading SQLITE_CORRUPT errors detected by the schema parser into SQLITE_NOMEM or SQLITE_ERROR errors. check-in: b2e79f8f user: drh tags: trunk
13:17
Ensure that the cell overwrite optimization does not overwrite the header of the b-tree page. check-in: 4cc5694c user: drh tags: trunk
00:04
Early detection out-of-bounds page numbers on the direct-overflow-read optimization gives consistent error messages regardless of whether or not the optimization is enabled. check-in: b517a52f user: drh tags: trunk
2019-08-14
15:17
Always check for reads past the end of the file on the in-memory journal driver. This used to be an assert(). check-in: 4d41ca7d user: drh tags: trunk
2019-08-13
20:34
Add some static to the 'regexp' extension. check-in: a21d1dde user: mistachkin tags: trunk
17:56
Update test cases so that they work with ICU enabled. check-in: 408144a1 user: dan tags: trunk
17:27
Update some corruption test cases to take [724f4df9c] into account. check-in: 927cd7b4 user: dan tags: trunk
15:22
Merge latest trunk changes with this branch. check-in: 5b4689d8 user: dan tags: reuse-schema
15:11
Fix a problem with RBU function sqlite3rbu_bp_progress() when used during an RBU vacuum. check-in: 8c44b02f user: dan tags: trunk
2019-08-12
18:26
Make sure the btree cursor overflow cache is cleared when overwriting a cell in sqlite3BtreeInsert(). Ticket [3cf9bb227e9a5d32] check-in: 7dae7b96 user: drh tags: trunk
16:36
Experimental implementation of NULLS FIRST/LAST. This branch still has problems - the most significant of which is that ORDER BY clauses with a non-default NULLS FIRST/LAST qualifier can never use an index. check-in: 07babb0f user: dan tags: nulls-last
16:25
For the ".testctrl prng_seed" command in the CLI, if the argument is "random" then select a random integer seed and print the seed value on stdout. check-in: 636ca447 user: drh tags: trunk
15:37
Fix the build for compilation using separate files rather than the amalgamation. Leaf check-in: 1e0f4869 user: drh tags: sha3
15:19
Make the sha3 extension part of the amalgamation, enabled using SQLITE_ENABLE_SHA3. check-in: a48a7b78 user: drh tags: sha3
14:17
Add a TESTCTRL that disables the verification of type, name, and tbl_name in the sqlite_master table. check-in: 48d9b48a user: drh tags: trunk
00:08
Validate the type, name, and tbl_name fields of the sqlite_master table when loading the schema, unless writable_schema is engaged. check-in: 724f4df9 user: drh tags: trunk
2019-08-10
15:06
Fix the sqliteExprImpliesExpr() routine so that it recognizes that "(NULL IS FALSE) IS FALSE" doe not imply "NULL NOT NULL". Ticket [9080b6227fabb466] check-in: da01ba4f user: drh tags: trunk
14:35
Add extra test cases related to the previous commit. check-in: 3c690b2b user: dan tags: trunk
14:16
Remove two incorrect assert() statements from the logic used to derive column names and types from subqueries. check-in: 712e4771 user: drh tags: trunk
2019-08-09
20:26
Allow the RHS of a row-value IN operator to use a compound query with an ORDER BY clause. check-in: eaf15d9b user: drh tags: trunk
14:54
In shared-schema mode, handle the case where a connection has created a virtual-table object, but is later assigned a different shared-schema object for which the virtual-table schema has not yet been initialized. check-in: e30c7414 user: dan tags: reuse-schema
01:59
Modify signature of sqlite3VdbeChangeOpcode() to accept int instead of u32. check-in: 68b7f2ac user: mistachkin tags: trunk
01:11
Fix more compiler warnings. check-in: 1b85442b user: drh tags: trunk
2019-08-08
19:40
Fix harmless compiler warnings. check-in: 1eef4dde user: drh tags: trunk
19:19
Remove support for SQLITE_ENABLE_STAT3. The sqlite_stat3 table is now ignored, if it exists. Run ANALYZE using STAT4 to get the equivalent functionality, which presumably everybody has been doing for a long time now. check-in: f1cd234c user: drh tags: trunk
18:49
Fix a case of the Expr.affinity to Expr.affExpr refactor that was missed in the [a29f2a7d07beff64] check-in. check-in: 83450d10 user: drh tags: trunk
16:23
More legacy STAT3 code removed. Closed-Leaf check-in: 845d2f17 user: drh tags: omit-stat3
15:47
Fix spurious "no such table: x1" errors in shared-schema mode that could occur when a query that is a join across two or more databases needs to call the xConnect() methods of a virtual table. check-in: edf45cd7 user: dan tags: reuse-schema
15:24
Remove support for STAT3. The sqlite_stat3 tables are ignored, if they exist. STAT4 continues to work as it always has, and as it is a superset of STAT3 is the recommended replacement. check-in: 1e17ea2f user: drh tags: omit-stat3
11:44
Fix a bug causing "no such table" and other similar sqlite3_prepare*() errors to return SQLITE_SCHEMA instead of SQLITE_ERROR in shared-schema mode when there is an attached database for which the schema has never been loaded. check-in: 111e2c73 user: dan tags: reuse-schema