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50 check-ins occurring around 391c73132c80df94.
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2021-05-21
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| 16:17 | Merge recent trunk changes into the begin-concurrent-pnu branch. (check-in: a8d05f8e92 user: drh tags: begin-concurrent-pnu) | |
| 15:33 | Merge all recent trunk changes into the begin-concurrent branch. (check-in: 0dba9010ad user: drh tags: begin-concurrent) | |
| 13:32 | Add a new sqlite3_config() option for setting the maximum precision of a printf() substitition. The default value is 100,000. It was formerly more than 2 billion. The default can be changed using the SQLITE_PRINTF_PRECISION_LIMIT compile-time option. (Leaf check-in: fd8b68a474 user: drh tags: compile-time-precision-limit) | |
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2021-05-20
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| 23:25 | Fix a faulty assert() statement in sqlite3ExprListDup(). This is a continuation of the fix at [59812e7ef705226c]. (check-in: 240f7494bf user: drh tags: trunk) | |
| 18:11 | Enhance one test case to use various alternative definitions of DUAL. (check-in: 179dcb6ba7 user: drh tags: trunk) | |
| 17:15 | Ensure that objects within view definitions are not incorrectly resolved to CTEs that are part of the statement using the view. (check-in: f7dcc4b519 user: dan tags: trunk) | |
| 11:42 | Ensure the required b-tree mutexes are held for "CREATE TABLE IF NOT EXISTS" and "DROP TABLE IF EXISTS" statements on attached databases. (check-in: 67bde01614 user: dan tags: trunk) | |
| 00:44 | Replace [0f0959c6f95046e8] with a new and better solution that also fixes the CTE name resolution problem described in forum post 8590e3f6dc. Test cases for both problems added. (check-in: 5614279daf user: drh tags: trunk) | |
| 00:10 | Fixes and improvements to PRAGMA compile_options. (check-in: 34579549a3 user: drh tags: trunk) | |
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2021-05-19
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| 23:29 | final merge from trunk (Leaf check-in: 0662956944 user: larrybr tags: compile_options) | |
| 21:55 | When constructing the synthensized SELECT statement that is used to choose the rows in an UPDATE FROM, make sure the first table is really the table being updated, and not some common-table expression that happens to have the same name. forum post a274248080. More changes associated with CTE name resolution are pending. (check-in: 0f0959c6f9 user: drh tags: trunk) | |
| 20:01 | Incorporate ..._DESERIALIZE revision. (check-in: b70587cca9 user: larrybr tags: compile_options) | |
| 19:55 | merge from trunk (check-in: 19ffe3cfe2 user: larrybr tags: compile_options) | |
| 19:28 | Add a comment with useful information about SHM locking. No changes to deliverable code. (check-in: 4e81ea3b15 user: drh tags: trunk) | |
| 19:27 | Fix a formatting error on the comment. (Closed-Leaf check-in: 6f2fb60e49 user: drh tags: better-comment) | |
| 16:55 | Add a table of shared-memory lock offsets in a comment in the os_unix.c code. Include some assert()s to help verify the numbers. (check-in: b480aacb34 user: drh tags: better-comment) | |
| 14:49 | Allow aggregate sub-selects within ORDER BY and PARTITION BY clauses of window frame definitions. (check-in: 3daab94977 user: dan tags: trunk) | |
| 12:17 | Improved column name and column type determination for the RETURNING clause. (check-in: 699c33990a user: drh tags: trunk) | |
| 02:33 | Cure some TCL test failures and narrow an object scope. (check-in: 1155696c70 user: larrybr tags: trunk) | |
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2021-05-18
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| 19:10 | In the MULTI-INDEX OR query plan, code for sub-expressions can sometimes be generated twice. But for some subqueries, generating code off of the same tree twice causes problems. So now MULTI-INDEX OR makes a copy of the sub-expressions it uses to avoid code-generating them more than once. dbsqlfuzz 9ebd2140e7206ff724e665f172faea28af801635. (check-in: 4a55f72542 user: drh tags: trunk) | |
| 12:36 | Improved comments on the generated opcodes.h file. (check-in: f2a17f1fad user: drh tags: trunk) | |
| 00:52 | Add a CORRUPT_DB term to an assert() added earlier today. (check-in: 304739d238 user: drh tags: trunk) | |
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2021-05-17
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| 17:14 | Fix harmless compiler warnings. (check-in: ace12a3912 user: drh tags: trunk) | |
| 16:54 | Enhance the integer-comparison optimization on the OP_Eq and similar opcodes so that it avoids a lot of useless work. (check-in: 4221f41af9 user: drh tags: trunk) | |
| 16:20 | Fix problems with refering to CTEs from within sub-selects in PARTITION BY or ORDER BY clauses of window frame definitions. Also a problem with renaming a column when the schema contains a trigger containing a correlated sub-select within a window frames PARTITION BY or ORDER BY clause. (check-in: 4c6cd54a8d user: dan tags: trunk) | |
| 13:11 | When deleting an SQL function that does not exist, return without doing anything at all rather than creating a tombstone function. In this way, function deletes that happen inside virtual-table destructors that are run when a database connection is closing do not create new tombstones in the function table after the function table has already been purged. forum post 726219164b. (check-in: 391c73132c user: drh tags: trunk) | |
| 11:19 | Performance improvement in sqlite3TableLock(). (check-in: 0d77e371c4 user: drh tags: trunk) | |
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2021-05-15
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| 19:36 | Performance optimization in the memory allocation of allocateCursor. (check-in: 9d16323d14 user: drh tags: trunk) | |
| 13:08 | Performance optimization to the clearCell() routine inside of btree. (check-in: c4e02619a4 user: drh tags: trunk) | |
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2021-05-14
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| 20:01 | Small performance improvement for sqlite3BtreeInsert(). (check-in: 4ae64484c5 user: drh tags: trunk) | |
| 15:37 | Avoid adding superfluous virtual WHERE clause terms that might arise due to the constant propagation optimization. (check-in: cf63abbe55 user: drh tags: trunk) | |
| 14:26 | Attempt the constant propagation optimization on any WHERE clause that has a top-level AND operator, even if the query is not a join. This is an attempt to partially address the concern raised in forum post 830d37b928. (check-in: e994c9f29f user: drh tags: trunk) | |
| 13:32 | Fix an over-length source code comment in whereexpr.c. No logic changes. (check-in: af5eb902e7 user: drh tags: trunk) | |
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2021-05-13
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| 18:24 | Modify the sqlite3_stmt_readonly() interface so that it returns false for CREATE TABLE IF NOT EXISTS statements even if the table already exists and the statement is really a read-only no-op. Likewise for DROP TABLE, CREATE INDEX, and DROP INDEX. Update the documentation for sqlite3_stmt_readonly() to reflect this new behavior. (check-in: cf8eb46597 user: drh tags: trunk) | |
| 13:43 | The content columns of the index-btree that implements a WITHOUT ROWID table are not ordered and so the query planner should not assume they are ordered. Fix for the issue identified by forum post 6c8960f545. (check-in: c21bc5a235 user: drh tags: trunk) | |
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2021-05-12
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| 22:15 | Further simplification of the reverse-order scan logic of the previous check-in. (check-in: b2b0e23ba8 user: drh tags: trunk) | |
| 22:02 | Fix the query plan for an indexed lookup on a WITHOUT ROWID table with a DESC primary key when the primary key is constrained by an inequality. See forum post 8988341615. Test cases in TH3. (check-in: f65c929bf1 user: drh tags: trunk) | |
| 15:39 | Fix a race condition that can lead to deadlock in the memdb VFS if one thread is trying to open an existing database at the same moment that another thread that is the only prior user of that database is trying to close it. (check-in: b635375dbe user: drh tags: trunk) | |
| 14:17 | Add the new threadtest5 test program for stressing multiple database connections in the same process hammering on a single database. Primarily designed to test memdb, but works on any database. (check-in: 8db1c06958 user: drh tags: trunk) | |
| 11:55 | Enhance the memdb VFS so that it is able to share databases among multiple database connections in the same process, as long as the database filename begins with "/". This provides a way for threads to share an in-memory database without the use of shared-cache mode. (check-in: 533fffc4a3 user: drh tags: trunk) | |
| 02:52 | Respond correctly to OOM during mutex allocation. (Closed-Leaf check-in: 98dae595d8 user: drh tags: memdb-enhancement) | |
| 02:09 | Mark an unreachable branch as NEVER(). (check-in: 6c20d9d4b7 user: drh tags: memdb-enhancement) | |
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2021-05-11
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| 11:40 | Fix a NEVER() that can sometimes be true. (check-in: 8f9f1cbc44 user: drh tags: memdb-enhancement) | |
| 11:33 | Merge changes from branch-3.35. Specifically, fixes for a running RBU with a cksumvfs VFS. (Leaf check-in: ca62c36b7f user: dan tags: reuse-schema-3.35) | |
| 11:25 | Fixes for cksmvfs and rbu so that they work together. (Leaf check-in: ce8b589e4c user: dan tags: branch-3.35) | |
| 10:47 | Fix a NEVER() that can sometimes be true. dbsqlfuzz 9a86fb3830977e216fde061bfbe1c1e5c2e9bfc4 (check-in: f39666e64d user: drh tags: trunk) | |
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2021-05-10
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| 23:48 | Enhance the memdb VFS to provide the ability to share a single database among multiple database connections. (check-in: 0617c66ac2 user: drh tags: memdb-enhancement) | |
| 13:28 | Add new output columns to the "PRAGMA database_list" statement. (Leaf check-in: 905085a75d user: drh tags: database-list-enhancement) | |
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2021-05-08
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| 17:18 | Enable the sqlite3_serialize() and sqlite3_deserialize() interfaces by default. Omit the SQLITE_ENABLE_DESERIALIZE option and replace it with the SQLITE_OMIT_DESERIALIZE option. (check-in: 6df3b03e00 user: drh tags: trunk) | |
| 11:57 | Fix help-text typo in the CLI. (check-in: 560753148a user: drh tags: trunk) | |