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66 check-ins using file src/select.c version ef860c7e

2019-05-15
10:16
Simplify the "Verifying Code Authenticity" section of the README.md file. No code changes. (check-in: adebffc1 user: drh tags: trunk)
2019-05-14
22:25
Merge all the latest trunk enhancements into the reuse-schema branch. (check-in: 018f3199 user: drh tags: reuse-schema)
22:02
Merge the latest trunk enhancements into the wal2 branch. (check-in: 23ec34e4 user: drh tags: wal2)
20:25
Fix a problem with the fix for [9cf6c9bb51] (commit [658b84d7]) that could cause a cursor to be left in an invalid state following a (rowid < text-value) search. (check-in: bc7d2c16 user: dan tags: trunk)
19:39
Merge recent enhancements from trunk into apple-osx. (check-in: 40362d51 user: drh tags: apple-osx)
19:20
New test cases in test/fuzzdata8.db. (check-in: 228e1087 user: drh tags: trunk)
18:33
Fix a problem with corrupt db handling in the fts5_vocab module. (check-in: 456ced57 user: dan tags: trunk)
11:33
Fix an assert() and potential buffer overrun in fts5 that could occur if the database was corrupt. (check-in: 8be8bd0d user: dan tags: trunk)
00:43
Disable index seek optimizations on REINDEX when the order of primary keys in the index differs from the main table. Fix for ticket [bba7b69f9849b5bf11b4]. (check-in: f7aadfab user: drh tags: trunk)
2019-05-13
11:52
Fix an assert() failure in fts5 that could occur when processing a corrupt database. (check-in: f158c048 user: dan tags: trunk)
2019-05-11
19:36
A new implementation for the sqlite3ExprImpliesExpr() theorem prover that does a better job of answering TRUE to "(NOT A) OR B" when B is a NOT NULL expression. (check-in: b3413197 user: drh tags: trunk)
16:14
When considering partial indexes, do not assume that a "CASE x ..." expression implies "x IS NOT NULL". (check-in: 1b243032 user: dan tags: trunk)
13:04
Do not assume that "x IS NOT ?" implies "x NOT NULL" when considering partial indexes. Fix for ticket [8025674847]. (check-in: 0ba6d709 user: dan tags: trunk)
2019-05-10
20:44
Add tests for the RBU module. (check-in: a194e536 user: dan tags: trunk)
17:54
Fix harmless compiler warnings. (check-in: 956ca2a4 user: drh tags: trunk)
17:50
Fix harmless compiler warnings in the CLI. (check-in: 2846bc04 user: drh tags: trunk)
16:16
Fix some harmless compiler warnings. (Closed-Leaf check-in: ca068d82 user: mistachkin tags: warnings)
14:34
Ensure that the BtShared.nPage value is reset correctly on a SAVEPOINT ROLLBACK. (check-in: e6d5fee8 user: drh tags: trunk)
14:26
Treat integer values in window definition ORDER BY clauses as constants, not as references to another expression. (check-in: 7e4809ea user: dan tags: trunk)
14:03
Improved comments and extra assert() statements on the OP_Savepoint opcode, just to make the code a little easier to read and reason about. (check-in: e80b2d9f user: drh tags: trunk)
12:14
Fix the previous check-in [db9acef14d492121] so that the amalgamation build works for systems for which lack HAVE_ISNAN. (check-in: 3cc55e09 user: drh tags: trunk)
12:06
Fix the round() SQL function so that it handles infinities correctly. (check-in: db9acef1 user: drh tags: trunk)
2019-05-09
18:37
Fix another small buffer overread in sqlite_dbdata triggered by a corrupt database page. (check-in: 1dfc95b8 user: dan tags: trunk)
18:33
Fix a problem in the ".recover" command allowing a circular loop of b-tree pages in a database file to cause an infinite loop. (check-in: 8d2a062e user: dan tags: trunk)
18:13
Make the ".schema" command in the CLI resistant to corrupt database files. (check-in: f22c7e22 user: drh tags: trunk)
17:54
Fix a crash in the sqlite_dbdata module that could occur if a pointer within an overflow chain in a corrupt database pointed past the end of the db. (check-in: 3eae4e30 user: dan tags: trunk)
17:10
Disable the optimization where a REAL value with no fractional part is stored as an INTEGER when the integer uses as much space as the real value it proposes to stand in for (8 bytes). This avoids corner cases of comparing integers against real values that are beyond the resolution of an IEEE 754 double. Fix for ticket [6c1d3febc00b22d457c78c2] (check-in: 9b091527 user: drh tags: trunk)
16:57
Avoid long delays that can occur when ".recover"ing data from a database with a corrupt freelist. (check-in: 20f06bf2 user: dan tags: trunk)
16:22
Improved debugging output from the OP_MakeRecord opcode. (check-in: ac790729 user: drh tags: trunk)
15:51
Fix another corruption related buffer overread in the sqlite_dbdata module. (check-in: 5cd728fb user: dan tags: trunk)
15:07
Fix further buffer overreads triggered by passing corrupt records to the sqlite_dbdata module. (check-in: dbc6a9f7 user: dan tags: trunk)
14:15
Have ".recover" handle cases where the sqlite_master table contains malformed SQL statements. (check-in: e736da9c user: dan tags: trunk)
11:45
Fix a problem with running the ".recover" command on a database that is zero pages in size. (check-in: 47fa6534 user: dan tags: trunk)
11:34
Avoid reading outside a record buffer when extracting an SQL value in the sqlite_dbdata virtual table code. (check-in: d99bb0c1 user: dan tags: trunk)
11:21
Merge accidental fork in trunk. (check-in: ec937303 user: dan tags: trunk)
11:19
Fix a problem in the new code introduced by [658b84d7] causing corruption and other errors to be ignored. (check-in: 7ccf2e7d user: dan tags: trunk)
11:18
Improved error handling for the ".open --hexdb" command of the CLI. (check-in: 4fa831d5 user: drh tags: trunk)
2019-05-08
23:55
Ensure that the sqlite3BtreeLast() interface initializes the *pRes return to zero if the cursor is already sitting on the last entry of the table. Manuel Rigger found the obscure test case for which this makes a difference. (check-in: ebe4845c user: drh tags: trunk)
23:53
This is part of the previous check-in that didn't get committed for some reason - probably because I failed to press the "Save" button on the text editor. (check-in: 51d32173 user: drh tags: trunk)
21:14
Add another test case to cover a previously uncovered branch in the RBU module. (check-in: 30392985 user: dan tags: trunk)
19:55
Fix another pattern for which the LIKE optimization does not work for a non-TEXT affinity. Case found by Manuel Rigger. (check-in: 74020110 user: drh tags: trunk)
19:32
Simplification to the logic underlying PRAGMA case_sensitive_like. (check-in: ef0015fd user: drh tags: trunk)
19:06
Avoid an excess register allocation in UPDATE, when possible. This improves speed (slightly) and reduces the code footprint. (check-in: 8658574e user: drh tags: trunk)
18:49
Add tests to improve code coverage of the RBU module. (check-in: ecb56b75 user: dan tags: trunk)
17:27
Provide the SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA compile-time option to omit the case_sensitive_like pragma. This change, in combination with documentation changes, is the current solution to ticket [a340eef47b0cad5]. (check-in: eabe7f2d user: drh tags: trunk)
11:52
Fix VDBE opcodes OP_SeekLT and OP_SeekLE so that they work on intkey tables with non-numeric text values. Fix for [9cf6c9bb]. (check-in: 658b84d7 user: dan tags: trunk)
11:42
Fix VDBE opcodes OP_SeekLT and OP_SeekLE so that they work on intkey tables with non-numeric text values. (Closed-Leaf check-in: a870c196 user: dan tags: tkt-9cf6c9bb)
04:33
Remove an ALWAYS() that was previously added by check-in [a0819086] but which turns out can sometimes be false. (check-in: ad8fc5d8 user: drh tags: trunk)
03:34
Remove a NEVER() that was added in the previous check-in [a0819086a521f] because it is in fact reachable. (check-in: 74eba255 user: drh tags: trunk)
00:17
Earlier detections of errors in the byte-offset-to-cell-content integer at offset 5 in the header of a btree page. (check-in: a0819086 user: drh tags: trunk)
2019-05-07
20:06
Generate all records for INSERT or UPDATE prior to running foreign key constraint checks, since the FK checks might modify the datatype of registers used to generate the records. Fix for ticket [e63cbcfd3378afe6980d6]. (check-in: 3c75605b user: drh tags: trunk)
19:44
Do not commit an "OR FAIL" statement that causes foriegn key constraint violations. (check-in: 659c551d user: dan tags: trunk)
19:21
Add test cases for the fix on this branch. (Closed-Leaf check-in: 2e31abe0 user: dan tags: tkt-e63cbcfd)
19:13
On an INSERT or UPDATE, generate the new table record prior to running foreign key checks, in case the foreign key checks changes datatypes on the registers holding column values. Proposed fix for ticket [e63cbcfd3378afe6980d626]. (check-in: 3f1c8051 user: drh tags: tkt-e63cbcfd)
17:47
Strive to prevent harmless compiler warnings in GCC 4.8.5. (check-in: 8b6691f6 user: drh tags: trunk)
16:37
Optimize the restarting of an RBU vacuum. (check-in: 82062351 user: dan tags: trunk)
16:28
Remove some redundant code from sqlite3rbu.c. Add test cases for RBU vacuum. (Closed-Leaf check-in: 7b051698 user: dan tags: rbu-opt)
2019-05-06
20:40
Optimize further cases of restarting an RBU vacuum. (check-in: 6b3261bf user: dan tags: rbu-opt)
16:15
Fix a problem with renaming an INTEGER PRIMARY KEY column of a WITHOUT ROWID table using ALTER TABLE. (check-in: 91f701d3 user: dan tags: trunk)
2019-05-04
20:04
Optimize some cases of restarting an RBU vacuum. (check-in: cdc09867 user: dan tags: rbu-opt)
17:32
Fix the NOT NULL logic in the theorem prover that determines when a partial index can be used. Ticket [5c6955204c392ae763a95]. (check-in: c2e439bc user: drh tags: trunk)
03:56
Fix harmless compiler warning seen with MSVC. (check-in: 5862b83e user: mistachkin tags: trunk)
01:41
In the sqlite3_value or Mem object, make the MEM_IntReal type completely independent from MEM_Int and MEM_Real. This helps avoid problems when inserting non-float values into a "REAL" column. (check-in: 5a8a23ee user: drh tags: trunk)
2019-05-03
19:34
Ensure that UTF16 strings are properly zero-terminated before returning them in an sqlite3_value_text16() request, even if the string is invalid UTF16 because it was formed from an arbitrary and/or odd-length BLOB. (check-in: 3a16ddf9 user: drh tags: trunk)
18:50
Fix a memory-leak/segfault caused by using OP_OpenDup and OP_OpenEphemeral on the same VM cursor. (check-in: a9b90aa1 user: dan tags: trunk)
17:19
Fix a problem where self-joins on views that are aggregate queries may return the wrong result. (check-in: 74ef97bf user: dan tags: trunk)