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

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29 descendants and 100 ancestors of [97a9604d]

2019-10-11
11:21
Merge the 3.30.1 changes into reuse-schema. Leaf check-in: eff7cd7f user: drh tags: reuse-schema-3.30
2019-10-04
15:31
Bring the reuse-schema branch up-to-date with version 3.30.0. Leaf check-in: 6e09afec user: drh tags: reuse-schema
2019-09-30
16:57
Merge in the 3.30.0 beta 1 changes. check-in: 06796124 user: drh tags: reuse-schema
2019-09-16
12:35
Merge all recent trunk enhancements into the reuse-schema branch. check-in: 27eb2236 user: drh tags: reuse-schema
2019-08-13
15:22
Merge latest trunk changes with this branch. check-in: 5b4689d8 user: dan tags: reuse-schema
2019-08-09
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
2019-08-08
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
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
2019-08-06
15:02
Add a multi-threaded test to threadtest3.c for the feature on this branch. check-in: 62557fab user: dan tags: reuse-schema
11:45
Add an assert() to the code on this branch. check-in: fdd44bbb user: dan tags: reuse-schema
2019-07-26
20:54
Merge latest changes from trunk into this branch. check-in: 7f1e4e4b user: dan tags: reuse-schema
2019-07-18
19:50
Add a ctime.c entry for SQLITE_ENABLE_SHARED_SCHEMA. check-in: 892ac945 user: drh tags: reuse-schema
13:33
Modify the bits used for special flags on this branch to account for the fact that some of them are now used for other purposes. check-in: 5a8d0f50 user: dan tags: reuse-schema
2019-07-10
18:45
Merge the version 3.29.0 release enhancements into the reuse-schema branch. check-in: 9819ead0 user: drh tags: reuse-schema
2019-07-08
21:32
Merge recent trunk enhancements into the reuse-schema branch. check-in: fae92fee user: drh tags: reuse-schema
2019-06-03
14:02
Updates to the shared_schema.md notes document. check-in: 51af2ade user: drh tags: reuse-schema
13:46
In the CLI, add ".help" text for the .shared-schema command. check-in: 3ba6f790 user: drh tags: reuse-schema
2019-05-24
13:15
The ".shared-schema" command in the CLI requires the sqlite_dbpage table, so disable it if the build does not include that extension. check-in: 0913ff4d user: drh tags: reuse-schema
13:04
Merge recent enhancements from trunk. check-in: ff9f3e09 user: drh tags: reuse-schema
2019-05-14
22:25
Merge all the latest trunk enhancements into the reuse-schema branch. check-in: 018f3199 user: drh tags: reuse-schema
2019-04-15
15:35
Merge recent changes from trunk into reuse-schema check-in: 5c6c9e7f user: drh tags: reuse-schema
2019-03-26
19:14
Remove a "puts" statement accidentally left in a test script. check-in: 9f591ac0 user: dan tags: reuse-schema
18:40
Add a few extra tests for SQLITE_STATUS_SCHEMA_USED with shared-schema databases. check-in: e399fede user: dan tags: reuse-schema
11:57
Merge recent trunk enhancements. check-in: db4e2cc3 user: drh tags: reuse-schema
2019-03-21
17:22
Merge latest trunk changes with this branch. check-in: 3196f5f4 user: dan tags: reuse-schema
17:13
Disable the feature on this branch in non-SQLITE_ENABLE_SHARED_SCHEMA builds. check-in: b8e53608 user: dan tags: reuse-schema
2019-03-20
20:02
Use the IsReuseSchema() macro more consistently. Also, rename it to IsSharedSchema(). check-in: c1be211c user: dan tags: reuse-schema
19:17
Fix an error message. check-in: a70fdaa3 user: dan tags: reuse-schema
16:03
Merge latest trunk changes into this branch. check-in: 4cd20ca6 user: dan tags: reuse-schema
2019-03-04
07:25
Merge latest trunk changes into this branch. check-in: 97a9604d user: dan tags: reuse-schema
07:15
Fix a problem preventing compilation with SQLITE_OMIT_UTF16. check-in: 906d1fd8 user: dan tags: trunk
2019-03-02
20:09
Improved comments on the fossildelta.c extension. check-in: d7d23f04 user: drh tags: trunk
15:25
Fix the SQLITE_DIRECT_OVERFLOW_READ compile-time option so that it works with SQLITE_HAS_CODEC. check-in: fd085e92 user: drh tags: trunk
12:17
Remove a redundant parameter extraction call from the percentile.c extension. check-in: d49c32e6 user: drh tags: trunk
2019-03-01
21:33
The fts3_tokenizer() function returns NULL if the SQLITE_DBCONFIG_ENABLE_FTS_TOKENIZER setting is disabled, which is is by default. check-in: f5732f4c user: drh tags: trunk
21:12
Fix a minor comment typo. No code changes. check-in: 9a0a93c8 user: drh tags: trunk
18:07
In a query that uses a partial index, the expression that is the WHERE clause of the partial index must always be true. Use this fact to avoid evaluating identical terms in the WHERE clause of the query. check-in: 9b287962 user: drh tags: trunk
2019-02-28
20:10
Add the ".parameter" command to the CLI. check-in: 1f9fa585 user: drh tags: trunk
17:29
Add the new "bind_fallback" method to the "sqlite3" object in the TCL interface. check-in: c7f70b6d user: drh tags: trunk
14:09
New test case loaded into test/fuzzdata8.db. check-in: 00ae0c6c user: drh tags: trunk
13:41
Avoid an assert() failure and an undefined left-shift operation in the fts3 snippet() function that could occur if the database was corrupt. check-in: d5250db6 user: dan tags: trunk
13:21
Add an "|| CORRUPT_DB" term to an assert() statement in the btree defragmenter. check-in: 6bfd8655 user: drh tags: trunk
2019-02-27
23:05
Enable the LIKE optimization when the ESCAPE keyword is present and the PRAGMA case_sensitive_like pragma is ON. check-in: 6ae4b8c5 user: drh tags: trunk
19:59
Fix the readfile() UDF so that it returns an empty BLOB, not an OOM error, when reading an empty file. check-in: 0edad533 user: drh tags: trunk
16:38
Add the "-returntype" option to the "db function" Tcl method. check-in: 789a492b user: dan tags: trunk
15:26
Verify that fts5 auxiliary functions cannot be used in aggregate queries. check-in: 122330db user: dan tags: trunk
2019-02-26
19:16
Reformat the white-space in a few test cases so that the tests work with Tcl 8.6.9. check-in: 29d02bf2 user: dan tags: trunk
18:21
Minor change to dbfuzz2 that allows it to be compiled against older versions of SQLite. check-in: 6d39d6a6 user: drh tags: trunk
17:52
New test cases added to test/fuzzdata8.db. check-in: 61fdfc57 user: drh tags: trunk
17:49
Allocate a few extra bytes for the pager temp page as an overrun buffer while processing corrupt database files. check-in: e7aca071 user: drh tags: trunk
16:36
Update doc/shared_schema.md to describe the shell tool ".shared-schema" dot-command. check-in: 0ce2092a user: dan tags: reuse-schema
16:17
Use unsigned integers to count the number of pages in a freelist during an integrity_check, to avoid any possibility of a signed integer overflow. check-in: 05b87e07 user: drh tags: trunk
16:13
Add new test file reuse5.test. For testing the shell tool ".shared-schema" command. check-in: fa6008d5 user: dan tags: reuse-schema
16:11
Fix a harmless compiler warning that only comes up during debug builds. check-in: 848869ce user: drh tags: trunk
15:43
Add the ".shared-schema check|fix DB1 DB2..." command to the shell tool. For checking if a database is eligible to share an in-memory with the main database, and for fixing small problems that prevent it from being so. check-in: 7d8e8a95 user: dan tags: reuse-schema
12:29
Update the configure-generated makekfile to generate a portable pkgIndex.tcl. check-in: 35cbee7f user: drh tags: trunk
2019-02-25
19:23
Fix a comment in build.c. check-in: d6a9bff6 user: dan tags: reuse-schema
18:43
Enhance the command-line shell to accept bound parameters, using the TEMP table named "$Parameters" to look up the values for bound parameters. check-in: 7c941ce5 user: drh tags: trunk
18:07
Merge latest trunk changes into this branch. check-in: 5c1cf308 user: dan tags: reuse-schema
17:54
Where possible, avoid loading all schemas into memory for PRAGMA statements. check-in: 64f97530 user: dan tags: reuse-schema
14:52
Update comments on the fossildelta extension. No changes to code. check-in: 9da4fb59 user: drh tags: trunk
14:16
Fix a typo in the documentation for sqlite3_total_changes(). check-in: 8474c156 user: drh tags: trunk
2019-02-23
20:48
Fix a couple of assert() statements in fts3 that can be false if the database is corrupt. check-in: 84162af5 user: dan tags: trunk
00:21
Check-in [fa792714ae62fa98] is incorrect. Add a test case to refute it and also a fix to make it right. Then add an alternative fix to ticket [df46dfb631f75694] in which all ephemeral tables used as the RHS of an IN operator be index btrees and never table btrees so that they can always be reused. check-in: d3915230 user: drh tags: trunk
00:08
Remove a testcase() macro which is now unreachable due to the contraction of the use of IN_INDEX_ROWID. Closed-Leaf check-in: 90c5a17c user: drh tags: tkt-df46dfb631
2019-02-22
23:29
Make all ephemeral tables built to hold the RHS of an IN operator be index-btrees, never table-btrees, regardless of whether or not they are used as IN_INDEX_LOOP or IN_INDEX_MEMBERSHIP. That way, the same ephmerial table can be reused for both cases. check-in: c2d50df8 user: drh tags: tkt-df46dfb631
21:33
Check-in [fa792714ae62fa980] is not a valid fix for ticket [df46dfb631f75694], as the new test case in this check-in demonstrates. The fix here causes test cases for the [df46dfb631f75694] bug to fail again, so this check-in is on a branch. A new fix is needed for [df46dfb631f75694]. check-in: 0d456456 user: drh tags: tkt-df46dfb631
19:24
Internally, remove all references to a Window object that belongs to an expression in an ORDER BY clause if that expression is converted to an alias of a result-set expression. Fix for [4feb3159c6]. check-in: 579b66ea user: dan tags: trunk
17:44
Merge latest trunk changes into this branch. check-in: 001771af user: dan tags: reuse-schema
16:18
In sqlite3NestedParse() be sure to detect all SQLITE_NOMEM and SQLITE_TOOBIG errors and to distinguish between them. check-in: 73056b31 user: drh tags: trunk
15:42
Modify sqlite3_str_finish() and sqlite3VMPrintf() so that they always return NULL on any OOM or SQLITE_LIMIT_LENGTH error. check-in: e7144ffd user: drh tags: trunk
2019-02-21
16:41
Detect oversized strings in the OP_String opcode even if the P4 argument is originally UTF8 and has to be converted to UTF16 to match the database file and that conversion causes the string to become shorter and cross below SQLITE_LIMIT_LENGTH threshold. This might fix an OSSFuzz problem that we have been so far unable to reproduce. check-in: c13d5639 user: drh tags: trunk
2019-02-20
19:20
Changes to the unix VFS that allegedly enable it to build of Fuchsia. We have no way of testing this. check-in: be21a641 user: drh tags: trunk
19:06
Disable unix-specific features of dbfuzz2 when compiling on windows. check-in: af84774d user: drh tags: trunk
18:44
Further test cases and fixes for SQLITE_OPEN_SHARED_SCHEMA. check-in: ba0ab042 user: dan tags: reuse-schema
18:13
Avoid the use of function pointers in columnName(), as function pointers appear to be a source of consternation to LLVM. check-in: c48f6f39 user: drh tags: trunk
17:36
Add test and fixes for SQLITE_OPEN_SHARED_SCHEMA mode. check-in: 9a78d89c user: dan tags: reuse-schema
13:55
Progress handler improvements: (1) Invoke the callback after OP_Program opcodes (2) Invoke the callback multiple times in a row to catch up after a long run of no progress checks. check-in: 0c5db18d user: drh tags: trunk
12:52
When an IN operator drives a query loop, mark it as "CODED" so that it will not be used afterwards for a (pointless) membership test. This is a better fix for ticket [df46dfb631f75694] than the previous fix that is now on a branch as it preserves the full optimization of check-in [e130319317e76119]. check-in: fa792714 user: drh tags: trunk
2019-02-19
20:29
Enhance the xBestIndex method on delta_parse() to return SQLITE_CONSTRAINT if no delta argument is supplied. check-in: f16d127c user: drh tags: trunk
20:19
Add the delta_parse(DELTA) table-valued function to the fossildelta extension. check-in: d91fcc26 user: drh tags: trunk
18:39
Add the fossildelta.c extension in ext/misc with implementations of the Fossil delta functions. check-in: b80cafa6 user: drh tags: trunk
18:00
Improve error messages caused by corrupt database schemas in OPEN_SHARED_SCHEMA mode. check-in: 8ac75b8a user: dan tags: reuse-schema
17:45
Fix a potential memory leak in RBU if the rbu_fossil_delta() SQL function is misused. Misuse never happens in a working RBU system, so this is not a particularly important fix. check-in: 12517d1b user: drh tags: trunk
16:42
Fix an assert() that might not be true if the database file is corrupt. check-in: f2d400db user: drh tags: trunk
13:51
New assert() to verify the TF_HasprimaryKey flag. check-in: 0abace8a user: drh tags: trunk
13:08
Always use the symbolic name SQLITE_IDXTYPE_PRIMARYKEY rather than a hard-coded magic number 2. check-in: 55d43adc user: drh tags: trunk
2019-02-18
18:16
Ensure that creating temp schema items does not cause an OPEN_SHARABLE_SCHEMA connection to load all schemas into memory. check-in: 88cbf54e user: dan tags: reuse-schema
12:16
Fix an assert() that might not be true if the %_segdir table of FTS3 contains corrupt entries. check-in: a6509ca3 user: drh tags: trunk
2019-02-16
22:45
Fix an assert() that might be false for a corrupt database. check-in: 0cfb8887 user: drh tags: trunk
2019-02-15
19:36
Enhance the virtual table in test_schemapool.c so that it can be used to check that SHARED_SCHEMA connections are not allocating and freeing schemas when they should not be. check-in: cb236cb9 user: dan tags: reuse-schema
19:00
Fix a problem with eponymous virtual tables and SHARED_SCHEMA databases. Also, after preparing statements that require all database schemas (REINDEX, ANALYZE, CREATE, DROP and some PRAGMA statements), do not allow the database connection to return more than one schema to each schema-pool. check-in: ecf6251e user: dan tags: reuse-schema
11:54
Revert the rearrangement of VDBE code in [219b39e14] so that vdbe.c matches trunk. Since the new call to sqlite3Init() in OP_ParseSchema was removed, the rearrangement no longer provides any performance advantage. check-in: 03c4f003 user: dan tags: reuse-schema
2019-02-14
21:04
Fix SQLITE_DBSTATUS_SCHEMA_USED so that it works with SQLITE_OPEN_SHARED_SCHEMA connections. check-in: d43b3c05 user: dan tags: reuse-schema
18:38
Change the name of the SQLITE_OPEN_REUSE_SCHEMA flag to SQLITE_OPEN_SHARED_SCHEMA. check-in: 7257fcc8 user: dan tags: reuse-schema
17:59
Fix a typo in shared_schema.md. check-in: e47a5aea user: dan tags: reuse-schema
17:51
Add documentation file doc/shared_schema.md to describe the change on this branch. check-in: a5f8067d user: dan tags: reuse-schema
15:56
Merge latest trunk into this branch. check-in: 577d1638 user: dan tags: reuse-schema
15:47
Add missing comments and fix other code issues in the new functions in callback.c. check-in: 441cabb6 user: dan tags: reuse-schema
15:27
Improved oversized cell detection when updating ptrmap pages in balance_nonroot(). check-in: aa61435a user: drh tags: trunk
2019-02-13
19:17
Fix for sqlite3_table_column_metadata() on REUSE_SCHEMA databases. check-in: 53220ad7 user: dan tags: reuse-schema
18:29
Avoid crashing after parsing a corrupt schema with a REUSE_SCHEMA connection. check-in: b102148e user: dan tags: reuse-schema
15:51
Fix a problem with the incrblob API and reusable schemas. check-in: 34f0f96f user: dan tags: reuse-schema
14:06
Rearrange the code in the VDBE to help out the C-compiler optimizer. And fix a harmless compiler warning. check-in: 219b39e1 user: drh tags: reuse-schema
13:48
Performance optimization in the VDBE, and a fix for a harmless compiler warning. Closed-Leaf check-in: e002666a user: drh tags: reuse-schema-vdbe-opt
08:40
Fix a problem with OPEN_REUSE_SCHEMA connections reloading the temp schema. check-in: 7c2ec2d4 user: dan tags: reuse-schema
2019-02-12
22:58
Ensure that the nProgressLimit variable is always initialized in sqlite3VdbeExec(), even if the routine jumps to its exit processing early. check-in: 167b91df user: drh tags: trunk
21:04
Enhancement the progress callback mechanism so that the progress callback is always invoked at least once at the end of a prepared statement if the opcode count has been exceeded. This makes the progress callback more effective at limiting run times. This check-in also includes and unrelated performance enhancement to OP_Column. check-in: 68cce272 user: drh tags: trunk
20:58
Add tests for creating temp schema objects with SQLITE_OPEN_REUSE_SCHEMA connections. check-in: 8c07b609 user: dan tags: reuse-schema
19:20
Share schemas between databases attached to the same database handle. check-in: ea611d7c user: dan tags: reuse-schema
16:58
Further performance improvements to btreeInitPage(). check-in: 93ae382e user: drh tags: trunk
15:51
Increase the version number to 3.28.0 for the next release cycle. check-in: 6eb38c59 user: drh tags: trunk
12:25
Register the "vfsstat" virtual table immediately when loading the vfsstat.c extension. check-in: 9bd92afd user: drh tags: trunk
01:28
New test cases in test/fuzzdata8.db. check-in: ab2356f5 user: drh tags: trunk
01:04
Defer computing the number of bytes of free space on a btree page until that value is actually needed. check-in: 177f5f40 user: drh tags: trunk
00:58
Change an assert() into a NEVER(), since the condition is difficult to prove with certainty. Improved comment on the MemPage.nFree field. Closed-Leaf check-in: fec071b8 user: drh tags: deferred-free-space
2019-02-11
22:50
Do not invoke btreeComputeFreeSpace() when not necessary. check-in: f11b0ed4 user: drh tags: deferred-free-space
20:13
Merge latest trunk changes into this branch. check-in: dbedd81b user: dan tags: reuse-schema
19:34
Add eponymous virtual table "schemapool". For inspecting the current contents of the schema-pool. check-in: 2ebeb747 user: dan tags: reuse-schema
19:27
Improvements to comments. No changes to code. check-in: 16eb0fc8 user: drh tags: deferred-free-space
17:22
Fix test cases. Avoid unnecessary tests for MemPage.nFree less than zero. check-in: 480a5090 user: drh tags: deferred-free-space
16:12
Fix another segfault that could occur in fts5 with a corrupted database. check-in: 09e33738 user: dan tags: trunk
13:25
Fix typos in comments in fts5.h. No changes to code. check-in: c19e97bc user: dan tags: trunk
12:51
Updates to a comment to keep it in alignment to the changes on this branch. check-in: 7499f743 user: drh tags: deferred-free-space
11:34
Build and test fixes for SQLITE_OMIT_WINDOWFUNC builds. check-in: 8824115a user: dan tags: trunk
11:04
Avoid using a "return void_function();" statement in void function sqlite3WalSnapshotUnlock(). It provokes a warning from some compilers. check-in: 4a4952d3 user: dan tags: trunk
01:58
Add an assert() in an attempt to repro an ASAN warning from OSSFuzz. check-in: 7b412224 user: drh tags: trunk
2019-02-09
22:33
Fix a page-cache reference leak in the btree balancer when there is a corrupt database. check-in: 92858991 user: drh tags: deferred-free-space
21:06
Defer computing the MemPage.nFree value of an in-memory btree page until it is actually needed, since for many pages it is never needed. This checkin works sufficiently to prove the concept, but still has issues with exception handling. check-in: 1d43ee40 user: drh tags: deferred-free-space
19:23
Change a few assert() statements in fts3 that might fail if the database is corrupt. check-in: db74a56a user: dan tags: trunk