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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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100 check-ins occurring around f464d847af490dd3.

2019-09-28
16:14
Improvements to a comment. No code changes. check-in: 1a3671c7 user: drh tags: trunk
11:19
In FTS3/4, the poslist end marker must be larger than any other possible poslist value, even on a corrupt poslist. check-in: 752679ae user: drh tags: trunk
2019-09-27
17:36
Update requirement marks due to changes in documentation wording. check-in: 326cdc16 user: drh tags: trunk
16:33
Allow compile-time options -DHAVE_GETHOSTUUID=0 and -DHAVE_GETHOSTUUID=1. check-in: 3bcb9cc1 user: drh tags: trunk
15:15
Alternative implementation of the previous check-in which is testable. check-in: 102ef644 user: drh tags: trunk
15:01
Fix sqlite3ExprCompare() so that it ignores differences in the Expr.iTable field for IN operators, as otherwise it can lead to false negatives, which is usually harmless, but can cause problems for an assert() in the window function logic. check-in: 6a204b19 user: drh tags: trunk
2019-09-26
20:57
More minor test file fixes. check-in: 352878fe user: dan tags: trunk
20:05
Allow DROP TABLE to work on tables name "sqlite_parameters" just as it does with tables named "sqlite_stat%". Fix for the ".parameter clear" command in the shell. check-in: e768179b user: drh tags: trunk
19:53
Minor fix for test file indexexpr1.test. check-in: 0ceab26f user: dan tags: trunk
16:57
New dbsqlfuzz cases added to test/fuzzdata8.db. check-in: 49073b70 user: drh tags: trunk
16:08
Test for an OOM condition in resolveAlias(). check-in: 322eca7f user: drh tags: trunk
15:53
Fix a window-functions problem that could occur if an ORDER BY clause contains an alias for a window-function that is not a top-level expression. check-in: 1cc6cf64 user: dan tags: trunk
2019-09-25
18:44
Add a missing VdbeCoverage() macro. check-in: 36d35dbd user: drh tags: trunk
17:47
Remove an unused variable. check-in: a1988445 user: drh tags: trunk
16:41
Further simplifications to window-function code. check-in: 5fe15c1d user: dan tags: trunk
11:49
In the previous check-in, the variable should be openMode, not openFlags. check-in: 77b0db22 user: drh tags: trunk
10:36
In the unix VFS layer, do not attempt to chown() the journal to be the same as the database if running in 8+3 filename mode. Also, update the comments on the chown() attempt to be more precise. check-in: ab853724 user: drh tags: trunk
02:07
Simplifications to the window-function code. check-in: 489a1eb3 user: drh tags: trunk
2019-09-24
20:20
Bug fixes for window frames of the form (... RANGE BETWEEN b PRECEDING AND a PRECEDING) or (... RANGE a FOLLOWING AND b FOLLOWING) where (a > b). check-in: 040e196a user: dan tags: trunk
2019-09-23
12:38
Omit the sqlite3IntTokens array constant for a code simplification. check-in: f907395e user: drh tags: trunk
11:55
When a scalar subquery has a pre-existing "LIMIT X" then change it to "LIMIT X<>0" rather than just "LIMIT 1" so that if X is 0 the limit will still be zero. Ticket [99cd4807dc03f178]. Test cases in TH3. check-in: 82e5dcf5 user: drh tags: trunk
2019-09-21
18:49
Fix a harmless unused variable warning in the test logic. check-in: d7673a44 user: drh tags: trunk
17:31
Fix harmless compiler warnings. check-in: 8ea1dc72 user: drh tags: trunk
15:44
Allow SQLite to omit redundant ORDER BY sorts in the case where a SELECT statement has GROUP BY and ORDER BY clauses that use the same expressions, even when the ORDER BY expressions are marked "DESC". check-in: 20f7951b user: dan tags: trunk
13:34
Add --multithread, --serialized, and --singlethread options to the speed-check.sh test script. check-in: c17078af user: drh tags: trunk
2019-09-20
21:12
Simplify the fix in the previous commit. check-in: 5ef64b0f user: dan tags: trunk
20:52
Fix a problem with queries containing a min() or max() function for which the FILTER clause excludes all rows. check-in: b1d7e104 user: dan tags: trunk
2019-09-19
13:51
Fix an assert() in fts3 that could fail when accessing a corrupt database. check-in: 601ce953 user: dan tags: trunk
2019-09-18
20:34
Always clear the temporary register cache after coding a subroutine. check-in: b6f2a7f9 user: drh tags: trunk
17:22
Add extra tests for the handling of corrupt records in fts3. check-in: 40e29a47 user: dan tags: trunk
12:49
Fix another potential "jump depends on uninitialized value" warning. check-in: 633b214e user: drh tags: trunk
11:46
Fix a "jump depends on unititialized value" valgrind error in fts5 triggered by corrupt database records. check-in: 6b6751cd user: dan tags: trunk
11:16
Fix an OOB read in the INSTR() function introduced yesterday by check-in [3fb40f518086c1e8] and detected by OSSFuzz. The test case is in TH3. check-in: d49047c1 user: drh tags: trunk
2019-09-17
21:28
Do not change the OP_String8 opcode into OP_String until *after* any necessary encoding conversions are accomplished. Otherwise, a rerun of the prepared statement after an OOM can result in errors. Test case in TH3. check-in: 8efd6259 user: drh tags: trunk
13:30
Test cases for ticket [587791f92620090e] check-in: ca0e3a83 user: drh tags: trunk
03:16
Fix the instr() SQL function so that it makes a copy of its argument before changing the datatype, since the datatype affects processing. Also fix the sqlite3_value_text() routine so that it always works even for values obtained form sqlite3_value_dup(). Ticket [587791f92620090e] check-in: 3fb40f51 user: drh tags: trunk
2019-09-16
20:16
Improved type information display when tracing VDBE execution. check-in: ee83d8e3 user: drh tags: trunk
18:19
Do not attempt the LIKE optimization for non-text columns and a pattern prefix of "-". Ticket [0f0428096f17252a] check-in: 6fe0367f user: drh tags: trunk
15:15
Add recent interesting cases from dbsqlfuzz. check-in: f06ef3d7 user: drh tags: trunk
14:42
Documentation updates for the SQLITE_DIRECTONLY flag. check-in: 5beb6dc9 user: drh tags: trunk
12:35
Merge all recent trunk enhancements into the reuse-schema branch. check-in: 27eb2236 user: drh tags: reuse-schema
12:29
Bring the begin-concurrent-pnu-wal2 branch up to date with all the latest enhancements on trunk. check-in: 15593bf3 user: drh tags: begin-concurrent-pnu-wal2
12:23
Merge recent trunk enhancements into the wal2 branch. check-in: da8bc974 user: drh tags: wal2
12:17
Merge recent trunk enhancements into the begin-concurrent-pnu branch. check-in: 54930b7e user: drh tags: begin-concurrent-pnu
12:08
Merge recent trunk enhancements into the begin-concurrent branch. check-in: 93b9ef3f user: drh tags: begin-concurrent
12:02
Merge the latest changes from trunk into the apple-osx branch. check-in: a95191de user: drh tags: apple-osx
05:34
Fix a problem with processing CTEs that use a WINDOW clause. check-in: ca564d4b user: dan tags: trunk
2019-09-14
16:44
Add the --no-rowids option to the ".recover" command. check-in: 01d71b94 user: dan tags: trunk
16:21
Extra comments on fields of the Window object. check-in: 3dbed162 user: drh tags: trunk
00:21
Fix the windows inverse function on the JSON aggregates. check-in: f464d847 user: drh tags: trunk
2019-09-13
20:42
Fix a problem with using json1 window functions with an EXCLUDE clause. check-in: 4a197881 user: dan tags: trunk
18:59
Fix the windowB test module so that it works even if SQLite is built without JSON support. check-in: 807975c7 user: drh tags: trunk
18:27
Add the SQLITE_SUBTYPE flag, which may be passed to sqlite3_create_window_function() to indicate that the window function uses sqlite3_value_subtype() to check the sub-type of its arguments. check-in: ba2ebc3a user: dan tags: trunk
17:36
Change the meaning of the SQLITE_SUBTYPE flag so that it indicates that the function may use sqlite3_value_subtype() on its arguments. Closed-Leaf check-in: 7f424ec9 user: dan tags: window-functions-subtype-fix
17:30
Fix a typo in the carray extension header comment - the comment that serves as the documentation to this extension. check-in: 658a42d3 user: drh tags: trunk
17:05
Change the meaning of the SQLITE_SUBTYPE flag so that it indicates that the user-defined function cares about the subtypes of its arguments. Closed-Leaf check-in: af1bc20f user: dan tags: window-functions-subtype-fix2
16:19
Merge latest trunk changes with this branch. check-in: 14ef7543 user: dan tags: window-functions-subtype-fix
13:23
Ensure that the idxStr for FTS5 is always zero-terminated. Fix for check-in [9d418a7a491761ee] check-in: 090cd07d user: drh tags: trunk
12:24
Fix harmless compiler warnings. check-in: a8927d14 user: drh tags: trunk
2019-09-12
19:38
Allow fts5 to filter on multiple MATCH clauses in a single scan. check-in: 9d418a7a user: dan tags: trunk
2019-09-11
15:25
Fix typo for one instance of line number handling in the Lemon tool. check-in: 980be173 user: mistachkin tags: trunk
2019-09-10
17:51
Enhance treeview to show SOFT-COLLATE for TK_COLLATE operators that omit the EP_Collate flag. check-in: a9780462 user: drh tags: trunk
15:33
Ensure the columns of views and sub-queries maintain their implicit collation sequences when the "push-down" optimization is applied. Fix for [18458b1a]. check-in: 36997c4a user: dan tags: trunk
2019-09-09
20:17
Ensure the columns of views and sub-selects in the FROM clause of a select are always assigned implicit collation sequences, just as table columns are. Fix for [a7debbe0]. check-in: b9ec7220 user: dan tags: trunk
19:49
Ensure the columns of views and sub-selects in the FROM clause of a select are always assigned implicit collation sequences, just as table columns are. Possible fix for [a7debbe0]. Closed-Leaf check-in: 1863b7bf user: dan tags: tkt-a7debbe0.
2019-09-07
18:20
Add the SQLITE_SUBTYPE flag, which can be passed to sqlite3_create_function() and similar to indicate to the core that a user function is likely to use sqlite3_result_subtype(). check-in: 6aa438ce user: dan tags: window-functions-subtype-fix
2019-09-04
06:56
Fix handling of NULL, text and blob values in window queries that use "RANGE BETWEEN A FOLLOWING AND B FOLLOWING", or "B PRECEDING AND A PRECEDING", where A>B. check-in: cb3e2be6 user: dan tags: trunk
2019-09-03
19:40
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. Leaf check-in: b54aa18b user: dan tags: branch-3.18
19:29
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. Leaf check-in: b584fd36 user: dan tags: branch-3.9
18:43
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. Leaf check-in: 0770363b user: drh tags: branch-3.19
18:36
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. Leaf check-in: 68b89838 user: drh tags: branch-3.22
18:04
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: 8452fd54 user: drh tags: branch-3.22
17:55
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: 34cd2d92 user: drh tags: branch-3.19
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