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66 check-ins using file ext/misc/btreeinfo.c version 89488a06

2017-11-14
03:42
Improvement to a comment. No changes to code. (Closed-Leaf check-in: 486949fc user: drh tags: readonly-wal-recovery)
2017-11-13
05:51
Remove some branches in walTryBeginRead() that were added by check-in [ce5d13c2de] but became unreachable with the addition of logic in check-in [18b26843] that enabled read-only clients to parse the WAL file into a heap-memory WAL-index, thus guaranteeing that the WAL-index header is always available. (check-in: 9c6b38b9 user: drh tags: readonly-wal-recovery)
2017-11-11
20:11
In wal.c: improved comments, new assert() and testcase() macros, and replace some magic numbers with appropriate symbolic constants. (check-in: 13ec8a77 user: drh tags: readonly-wal-recovery)
13:30
Further comment improvements in wal.c. No code changes. (check-in: 34638800 user: drh tags: readonly-wal-recovery)
2017-11-10
20:00
Improved comments and variable names in the read-only WAL logic. (check-in: d3c25740 user: drh tags: readonly-wal-recovery)
2017-11-09
23:24
Avoid superfluous SHM unlock call in the Win32 VFS. (check-in: 5a384be6 user: mistachkin tags: readonly-wal-recovery)
22:25
Cleanup superfluous whitespace changes. (check-in: a2908e2c user: mistachkin tags: readonly-wal-recovery)
22:23
Revise and vastly simplify the Win32 SHM file locking semantics, allowing all new tests to pass. (check-in: d0997b0f user: mistachkin tags: readonly-wal-recovery)
20:37
Add an assert() in the Win32 VFS. (check-in: 22e58330 user: mistachkin tags: readonly-wal-recovery)
20:34
Enhance walro2.test to better ensure that readonly_shm clients are not using invalid *-shm files. (check-in: ff630b66 user: dan tags: readonly-wal-recovery)
20:02
Get read-only SHM file tests passing on Win32. (check-in: abef0535 user: mistachkin tags: readonly-wal-recovery)
18:53
Further corrections to read-only SHM file handling on Win32. (check-in: 43c31170 user: mistachkin tags: readonly-wal-recovery)
18:21
Corrections to Win32 lock detection for SHM files. (check-in: 3a91be97 user: mistachkin tags: readonly-wal-recovery)
17:29
Corrections to the Win32 porting changes on this branch. (check-in: 0b26a5a2 user: mistachkin tags: readonly-wal-recovery)
17:29
Make it possible to use OSTRACE for multi-process testing. (check-in: 0a7d416c user: mistachkin tags: readonly-wal-recovery)
16:30
Initial work on porting the changes on this branch to Win32. (check-in: 3738bfd0 user: mistachkin tags: readonly-wal-recovery)
2017-11-08
19:26
Extra comments on the sqlite3OsShmMap() call in walBeginUnlocked(). No changes to code. (check-in: 033ee92b user: drh tags: readonly-wal-recovery)
17:51
Turns out that SQLITE_READONLY_CANTLOCK is an historical name that must be preserved. So make a new SQLITE_READLOCK_CANTINIT name instead. (check-in: 04974a8b user: drh tags: readonly-wal-recovery)
17:32
Change the name of SQLITE_READONLY_CANTLOCK to SQLITE_READONLY_CANTINIT. (check-in: 6d7f94fa user: drh tags: readonly-wal-recovery)
2017-11-07
21:25
Update an assert in wal.c. (check-in: 94527b89 user: dan tags: readonly-wal-recovery)
21:15
Handle the race condition that may occur if another process connects and then checkpoints and truncates the wal file while a readonly-shm client is building its heap-memory wal-index. (check-in: 5a6703fc user: dan tags: readonly-wal-recovery)
15:43
On unix, if the *-shm file cannot be opened for read/write access, open it read-only and proceed as if the readonly_shm=1 URI option were specified. (check-in: ba718754 user: dan tags: readonly-wal-recovery)
09:08
Add fault-injection tests for the code on this branch. (check-in: a7d949fb user: dan tags: readonly-wal-recovery)
2017-11-06
19:49
Add further test cases for the new code on this branch. And a couple of fixes. (check-in: 71af9acb user: dan tags: readonly-wal-recovery)
2017-11-04
21:06
Add further tests for the code added on this branch. (check-in: a6716fcd user: dan tags: readonly-wal-recovery)
18:10
In cases where a readonly_shm client cannot take the DMS lock on the *-shm file, have it parse the wal file and create a wal-index to access it in heap memory. (check-in: 18b26843 user: dan tags: readonly-wal-recovery)
2017-11-03
17:17
Allow readonly_shm connections to access the *-shm file using read() even if it is unable to take a DMS lock. (check-in: 9b0d5c4f user: dan tags: fcntl_shm_read)
2017-11-02
18:57
Fix test cases in wal2.test broken by the locking change in the previous commit. (check-in: f569c351 user: dan tags: readonly-wal-recovery)
11:12
Avoid locking shm-lock WAL_READ_LOCK(0) during recovery. Doing this allows recovery to proceed while a readonly_shm connection in unlocked mode has an ongoing read transaction. (check-in: 5190d84a user: dan tags: readonly-wal-recovery)
2017-11-01
20:59
If a readonly_shm connection cannot map the *-shm file because no other process is holding the DMS lock, have it read from the database file only, ignoring any content in the wal file. (check-in: ce5d13c2 user: dan tags: readonly-wal-recovery)
07:06
Merge latest trunk changes into this branch. (check-in: 985bfc99 user: dan tags: readonly-wal-recovery)
06:59
Fix a race condition in os_unix.c that might allow a client to use a *-shm file corrupted by a power failure if another client fails between locking the *-shm file and truncating it to zero bytes. (check-in: d655bfab user: dan tags: readonly-wal-recovery)
2017-10-31
14:56
Update the built procedures for the sqlite3_analyzer utility to allow it to be linked with an external sqlite3.o library. Automatically detect a missing dbstat extension and report the compile-time error. (check-in: bb39744f user: drh tags: trunk)
12:20
Fix redundancies in the makefiles that resulted from moving shell.c over to shell.c.in. (check-in: bf09fa68 user: drh tags: trunk)
12:06
Fix a minor comment typo. No changes to code. (check-in: 5f79e6d9 user: drh tags: trunk)
12:01
Fix a couple of issues in incremental_index_check to do with CREATE INDEX statements that contain embedded SQL comments. (check-in: 2aef4181 user: dan tags: checkindex)
03:40
Remove unnecessary NEVER() and ALWAYS() conditionals. (check-in: 1c80c75d user: drh tags: trunk)
2017-10-30
23:25
Add the showshm utility program for printing out the shm header in a human-readable format. (check-in: f6304fd1 user: drh tags: trunk)
20:44
Clarify some comments describing the WAL index file. No changes to code. (check-in: 3be3aad9 user: drh tags: trunk)
19:38
Add support for indexes on expressions to incremental_index_check. (check-in: 8c1c701f user: dan tags: checkindex)
18:49
Improve the performance of the LIKE operator by using strcspn() to aid wildcard matching. (check-in: 37284d4e user: drh tags: trunk)
18:26
Speed up wildcard searches in LIKE using strchr() (Closed-Leaf check-in: 4d336d74 user: drh tags: like-compare-opt)
17:05
In checkindex.c, use C code instead of SQL/group_concat() to compose various SQL clauses. This is to make it easier to support indexes on expressions. (check-in: 940606b3 user: dan tags: checkindex)
08:04
Fix an issue in incremental_index_check with indexes that use non-default collation sequences. (check-in: 3ebb2351 user: dan tags: checkindex)
2017-10-28
20:54
Increase the version number for the next release - which is still months away but there have been significant query planner enhancements since the previous release. (check-in: 457eedfa user: drh tags: trunk)
20:51
Reactivate query flattening when the result set of the outer query has no function calls or subqueries. This is a partial reversal of check-in [c9104b59]. Co-routines are still preferred if the outer query has a complex result set, but for simple results sets, query flattening is used. Check-in [4464f40ccd7] is completely backed out due to this change. (check-in: d17ef7d1 user: drh tags: trunk)
20:31
Fix "after" parameter handling in the incremental_index_check code. (check-in: c40c3c62 user: dan tags: checkindex)
12:20
Add test cases from OSSFuzz to prevent a regression in co-routine processing. (check-in: 689743d8 user: drh tags: trunk)
2017-10-27
23:28
I was a little concerned about this check-in. Though I could not generate a failure myself, I thought it was risky. I checked it in for further testing. Then, overnight, OSSFuzz found a failure case for me. So the change is now moved out into a deadend branch. Was: Use OP_SCopy rather than OP_Copy to transfer results from a co-routine to its consumer. This undoes an earlier fix for ticket [98825a79ce] by check-in [ec6a06246e] because that problem no longer occurs due to WHERE clause push-down. (Closed-Leaf check-in: 0926df09 user: drh tags: mistake)
20:53
Add the start of the "incremental_index_check" virtual table in ext/repair/checkindex.c. For incremental verification of index contents. (check-in: d5b9dada user: dan tags: checkindex)
18:24
Fix a Pager ref-count leak in the sqlite_dbpage virtual table. (check-in: c063bb04 user: drh tags: trunk)
17:09
Handle the Ctrl-C event for the shell on Win32. (check-in: c8aaf371 user: mistachkin tags: trunk)
12:27
Additional test case demonstrating the ability to access structure elements using quoted names in the JSON1 extension. (check-in: 8d3cc928 user: drh tags: trunk)
2017-10-26
20:04
Enhance the min/max optimization so that it works with indexes on expressions. (check-in: 6caec908 user: drh tags: trunk)
18:43
Extra ".selecttrace" output following aggregate analysis. No changes to production builds. (check-in: 6fbf74ab user: drh tags: trunk)
17:34
Fix an error in the previous commit on this branch. (check-in: f71dfee0 user: dan tags: readonly-wal-recovery)
17:05
Instead of extra locks, use F_GETLK to ensure that readonly_shm clients cannot connect to a wal-mode database if there are no writers. (check-in: 5492f457 user: dan tags: readonly-wal-recovery)
15:21
Fix a bug causing "make amalgmation-autoconf" to create an invalid package if either the current or parent directory contains a file named install.sh or install-sh. (check-in: e1faa785 user: dan tags: trunk)
2017-10-25
23:28
Use extra locks to prevent a readonly_shm=1 process from connecting to a WAL-mode database if there are no writers. (check-in: 35d97908 user: drh tags: readonly-wal-recovery)
19:18
Fix the sqlite3_dbpage virtual table so that it can read and write from any attached database. (check-in: d4f893e1 user: drh tags: trunk)
18:17
Add tests cases and fix minor issues in the rtreecheck() function. (check-in: d6130cd2 user: dan tags: trunk)
18:01
Add SQL scalar function rtreecheck() to the rtree module. For running checks to ensure the shadow tables used by an rtree virtual table are internally consistent. (check-in: 7d264980 user: mistachkin tags: trunk)
18:00
Fix compilation issue (C99-ism) seen with MSVC. (Closed-Leaf check-in: 61870b42 user: mistachkin tags: rtree-integrity-check)
16:38
Add SQL scalar function rtreecheck() to the rtree module. For running checks to ensure the shadow tables used by an rtree virtual table are internally consistent. (check-in: dde0bb3e user: dan tags: rtree-integrity-check)
16:14
Do not reference the ioctl() system call in the unix backend unless it is actually needed by the Batch Atomic Write extension. This should allow the build to work on VxWorks. (check-in: adfa7ed2 user: drh tags: trunk)
01:34
Add the sqlite_btreeinfo eponymous-only table for introspecting the schema and estimating the sizes of various btrees. (check-in: 1e30f477 user: drh tags: trunk)