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50 descendants of c54bd9c82dd34951
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2016-08-26
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| 21:15 | Fix the sqlite3FindInIndex() to ensure that it always uses a prefix of the index and uses no repeated columns. Enhanced comments. (check-in: b9fc89e432 user: drh tags: rowvalue) | |
| 19:54 | Add an EXPLAIN QUERY PLAN line for when a index is used to implement an IN operator. (check-in: 171aa833a2 user: drh tags: rowvalue) | |
| 19:47 | Add test cases to rowvalue2.test. (check-in: 078bb69e99 user: dan tags: rowvalue) | |
| 19:31 | Enhance sqlite3FindInIndex() so that it is able to make use of the primary keys at the end of an index. (check-in: 4b589fbfcc user: drh tags: rowvalue) | |
| 18:17 | Fix a post-OOM crash in updateRangeAffinityStr(). Add several ALWAYS() macros on unreachable branches. (check-in: 87d40195ae user: drh tags: rowvalue) | |
| 17:54 | Fix a problem with affinity changes and vector range comparisons. (check-in: b34413ac7e user: dan tags: rowvalue) | |
| 13:19 | Allow ROWID values in indexed vector comparisons. (check-in: b0cc6be4eb user: drh tags: rowvalue) | |
| 03:42 | Comment improvements. Put ALWAYS and NEVER macros on three unreachable branches. (check-in: 397617009e user: drh tags: rowvalue) | |
| 01:02 | Remove an unreachable branch from sqlite3ExprAffinity() (check-in: 9d96f61481 user: drh tags: rowvalue) | |
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2016-08-25
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| 22:31 | Merge recent changes from trunk. (check-in: 5789aab8ef user: drh tags: rowvalue) | |
| 21:14 | Refactor the sqlite3ExprCodeIN() routine for improved maintainability. (check-in: b56705ae63 user: drh tags: rowvalue) | |
| 17:47 | Another fix in the IN-operator algorithm description. (check-in: f474aeac4f user: drh tags: rowvalue) | |
| 17:40 | Further refinement of the in-operator.md documentation. (check-in: df0648373a user: drh tags: rowvalue) | |
| 15:46 | Improvements to IN operator code generator comments. Avoid unnecessary Copy operations on the LHS of the IN operator. (check-in: b634429878 user: drh tags: rowvalue) | |
| 14:23 | Corrections to the IN-operator notes. (check-in: 25033ee945 user: drh tags: rowvalue) | |
| 14:00 | Add notes on the implementation of the IN operator. (check-in: d256b2caeb user: drh tags: rowvalue) | |
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2016-08-24
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| 21:54 | Simplified VDBE code for the vector NOT IN null-scanning loop. (check-in: 7ae504e62e user: drh tags: rowvalue) | |
| 21:24 | Improved extended comments of comparison operators when the SQLITE_STOREP2 flags is set on P5. No changes to non-debug code. (check-in: bbc1b01616 user: drh tags: rowvalue) | |
| 18:51 | In sqlite3FindInIndex(), improve internal comments and avoid an unreachable branch. (check-in: 55945fc12f user: drh tags: rowvalue) | |
| 17:49 | Fix more unreachable branches. (check-in: 6099c180db user: drh tags: rowvalue) | |
| 15:37 | Add a NEVER() on an unreachable branch in comparisonAffinity(). (check-in: 505a2f20ea user: drh tags: rowvalue) | |
| 12:22 | Fix a buffer overrun in the code for handling IN(...) operators when the LHS of the operator contains indexed columns or expressions. (check-in: f41a0391b7 user: dan tags: rowvalue) | |
| 00:51 | The previous OOM fix was bad. Back it out and replace it with a better one. (check-in: 1e3bc3698a user: drh tags: rowvalue) | |
| 00:25 | Avoid a potential null-pointer dereference following an OOM. (check-in: 25f6ed8de4 user: drh tags: rowvalue) | |
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2016-08-23
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| 19:02 | Simplify the row value misuse error message. (check-in: 838c50a5bf user: drh tags: rowvalue) | |
| 18:30 | Fix a problem with rowvalue UPDATE when the rowvalue is not the left-most and the RHS is a multi-column subquery. (check-in: e149e6b93a user: drh tags: rowvalue) | |
| 17:30 | Fix an uninitialized variable in CASE expression code generation. (check-in: c8ffae05e1 user: drh tags: rowvalue) | |
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2016-08-22
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| 14:30 | Fix the vector BETWEEN operator so that it only evaluates the left-most vector expression once. Add support for vector comparisons in the CASE operator. (check-in: 07e69f43a2 user: drh tags: rowvalue) | |
| 00:48 | Reinstate the mechanism in BETWEEN that avoids evaluating the first expression more than once, but fix the affinity extractor so that it works with this mechanism. The de-duplication of the first expression still does not work for vector expressions, though. (check-in: 2f39987f21 user: drh tags: rowvalue) | |
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2016-08-20
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| 22:49 | The docs promise the in "x BETWEEN y AND z" the x expression is only evaluated once. That is no longer true, and so some tests are failing. This needs to be fixed before merging to trunk. (check-in: e50d264fdc user: drh tags: rowvalue) | |
| 21:11 | Further comment enhancements. No changes to code. (check-in: d4562a9e7b user: drh tags: rowvalue) | |
| 21:02 | Clarification of code comments in expr.c. Clean up the implementations of sqlite3ExprIsVector() and sqlite3ExprVectorSize() slightly. (check-in: 4fb66d6592 user: drh tags: rowvalue) | |
| 18:06 | Fixes for problems following OOM errors. (check-in: 9041ee4a6f user: drh tags: rowvalue) | |
| 17:00 | Do not duplicate the Expr.pLeft subtree of a TK_SELECT_COLUMN node. (check-in: 8384c77ebb user: drh tags: rowvalue) | |
| 15:01 | Fix a segfault that could occur if a query that used a vector comparison contained certain types of syntax errors. (check-in: 203f07c5e1 user: dan tags: rowvalue) | |
| 12:00 | Improvements to the vector comparison splitter in exprAnalyze(). (check-in: a3ffd283bc user: drh tags: rowvalue) | |
| 01:06 | Improvements to comments. No code changes. (check-in: 4165d20f64 user: drh tags: rowvalue) | |
| 00:51 | Add support for vector assignments in the SET clause of an UPDATE statement. (check-in: f320d47d6b user: drh tags: rowvalue) | |
| 00:07 | Change the way TK_SELECT_COLUMN is handled so that the subquery is only generated once even if part of the vector comparison is used for indexing and the other part is now. This change also is a pathway to vector assignment in UPDATE statements. (check-in: d8feea7dcd user: drh tags: rowvalue) | |
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2016-08-19
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| 19:58 | Replace the magic number (-2) with its symbol XN_EXPR in the exprMightBeIndexed() routine. No logic changes. (check-in: d4a5af69cc user: drh tags: rowvalue) | |
| 19:12 | Improved comments on sqlite3CodeSubquery(). No changes to code. (check-in: acea4ee136 user: drh tags: rowvalue) | |
| 18:40 | Show the WhereTerm.iField value on debugging output, when it is non-zero. (check-in: 931c95358d user: drh tags: rowvalue) | |
| 18:28 | Fix an obsolete comment on codeEqualityTerm(). No changes to code. (check-in: d07be5afb0 user: drh tags: rowvalue) | |
| 15:41 | Merge recent enhancements from trunk. (check-in: b17872363b user: drh tags: rowvalue) | |
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2016-08-18
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| 19:04 | Fix a SQL NULL handling bug in the vector IN operator code generation. (check-in: 936146b12e user: drh tags: rowvalue) | |
| 18:09 | Display SELECT_COLUMN expressions in the .wheretrace debugging output. (check-in: 3b27a5da10 user: drh tags: rowvalue) | |
| 17:55 | Display VECTOR expressions in .wheretrace and .selecttrace debugging output. (check-in: 157347e258 user: drh tags: rowvalue) | |
| 15:36 | Since the TK_VECTOR token is not actually used by the parser, make it an extra token code added by the tool/addopcodes.tcl script during parser build. (check-in: b40b202c1f user: drh tags: rowvalue) | |
| 15:21 | Merge recent enhancements from trunk. (check-in: 4768a1066c user: drh tags: rowvalue) | |
| 15:15 | Simplify the vector comparison code generator logic, and the resulting VDBE code. (check-in: e2ad0b5d8e user: drh tags: rowvalue) | |
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2016-08-13
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| 14:17 | Remove an unnecessary stack variable from sqlite3VdbeExec(). (Closed-Leaf check-in: c54bd9c82d user: drh tags: vector-compare) | |