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100 check-ins occurring around 156d612800a7282f.

2019-09-03
17:46
Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. check-in: 0a1cce49 user: drh tags: branch-3.18
17:39
Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. check-in: 7b4583f9 user: drh tags: branch-3.9
16:23
Updates to the default settings in Makefile.linux-gcc. check-in: 3044cf69 user: drh tags: trunk
14:27
When we play games with COLLATE in order to commute an operator in the WHERE clause processing, be sure not to use the commuted operator to qualify a partial index, as insufficient COLLATE information is preserved to verify that the expression will correctly qualify the index. Ticket [767a8cbc6d20bd68] check-in: 5351e920 user: drh tags: trunk
2019-09-02
22:13
Fix a bug introduced earlier today by check-in [88833a9c2849c959]. Ticket [29f635e0af71234b] check-in: 6e7b4527 user: drh tags: trunk
14:46
Fix a potential crash in fts5 caused by using an auxiliary function on a "special" query like '*id' or '*reads'. check-in: 9490683a user: dan tags: trunk
02:21
When applying the IN_INDEX_NOOP optimization and the LHS has REAL affinity, also apply REAL affinity to each element of the RHS. Ticket [2841e99d104c6436]. check-in: 88833a9c user: drh tags: trunk
01:25
Fix an obsolete comment that defines the meaning of one of the parameters to the sqlite3FindInIndex() subroutine. No changes to code. check-in: 0c946f08 user: drh tags: trunk
00:58
When computing an expression value for an index-on-expression or a CHECK constraint and the expressions uses a REAL table column, but the value of that column is an integer (in other words, when it is using the store-real-as-integer optimization) be sure to promote the value to real before evaluating the expression. Ticket [57af00b6642ecd68]. check-in: 0658c16e user: drh tags: trunk
2019-09-01
23:36
Remove an obsolete paragraph from the OP_Column documentation. No code changes. check-in: f6d8956c user: drh tags: trunk
2019-08-31
20:29
Fix a harmless compiler warning. check-in: 63c67a54 user: drh tags: trunk
20:26
Mark new VDBE branches never taken. check-in: 83c2adff user: drh tags: trunk
20:13
Improvements to the algorithm that determines which SELECT in a sequence of nested SELECT statements that an aggregate function belongs to. This resolves an issue identified by dbsqlfuzz. check-in: d7680074 user: drh tags: trunk
17:14
If a DELETE trigger fired by an UPDATE OR REPLACE statement deletes the row being updated, do not attempt to proceed with the original UPDATE operation. Fix for [d6a0fbc1]. check-in: 4145b3e0 user: dan tags: trunk
01:33
Remove some affinity tests that became unreachable due to the prior change. check-in: e2db1123 user: drh tags: trunk
2019-08-30
23:56
When the affinity of a table column is INT or REAL, make the affinity of corresponding index columns NUMERIC. This increases the precision of index lookups for large numbers so that it matches the precision of ordinary comparison operators. Ticket [40812aea1fde9594] check-in: e0d909c7 user: drh tags: trunk
23:15
Make sure OP_RealAffinity has been applied to all columns of type REAL in the excluded.* pseudo-table of an UPSERT. Ticket [5a3dba8104421320] check-in: 67381dad user: drh tags: trunk
21:52
Improvements to VDBE tracing. No changes to code in normal deliverables. check-in: 54553bf1 user: drh tags: trunk
19:45
Add test case to window8.test. Also fix an error in a comment in window.c. check-in: 2925bfa5 user: dan tags: trunk
18:02
Back out the change at [47cd634c98b502d4] which was incorrect. Add a test case so that we don't accidently back out that change again. check-in: 596ac2a4 user: drh tags: trunk
17:28
Add further comments to window.c. check-in: 90046456 user: dan tags: trunk
16:46
New test cases for window functions with RANGE BETWEEN and DESC NULLS FIRST. check-in: f7002f86 user: drh tags: trunk
16:14
Fix a bug in RANGE window functions that use "ORDER BY <expr> DESC NULLS FIRST" as the window-frame ORDER BY clause. check-in: 39b4cad4 user: dan tags: trunk
16:00
The expression "(X IS FALSE) IN (FALSE)" does not imply that X is NOT NULL. Ticket [f8f472cbc77ba9c9] check-in: dd661348 user: drh tags: trunk
15:11
The expression "(X IS FALSE) BETWEEN FALSE AND TRUE" does not implie that X is not NULL. Ticket [fba33c8b1df6a915] check-in: 057fb8b1 user: drh tags: trunk
13:07
The expression "(x IS FALSE) IS FALSE" does not imply that X is not NULL. Ticket [a6408d42b9f44462] check-in: 45ff2b1f user: drh tags: trunk
2019-08-29
23:24
Remove a faulty testcase() macro. check-in: 80124ae5 user: drh tags: trunk
21:16
Improve vdbe branch coverage of NULLS LAST code. check-in: e8e9f77d user: dan tags: trunk
19:34
Fix other problems similar to ticket [c0390363]. check-in: 96ff2ba9 user: dan tags: trunk
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