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chromium / external / github.com / sqlite / sqlite / HEAD / src / where.c
  1. 44a0367 Merge the latest trunk enhancements and fixes into the empty-table-optimizations branch. by drh · 12 days ago
  2. 4fe1ac8 Simplifications to the row-value IN operator logic. Do not let the query by drh · 12 days ago redundant-idx-columns
  3. 4aacd1e Back out the fix at [ba7d5bad32ad6aac] because it does not always work and because by drh · 12 days ago
  4. 1b62720 Improve the early-termination optimization so that it works in queries by drh · 2 weeks ago
  5. aa54d7a Merge in the exists-to-join optimization that has been modified by drh · 2 weeks ago
  6. eb27359 Fix VDBE coverage by drh · 2 weeks ago
  7. 33f3273 Early exit if one of the inner loops of a 3-way or larger join is an by drh · 2 weeks ago
  8. 3d21dcc More aggressive optimization of addrHalt for RIGHT JOIN. by drh · 3 weeks ago
  9. ba56f70 Compute WhereLevel.addrBrk and .addrHalt early so that those labels can be by drh · 3 weeks ago
  10. d3a13f7 Improved debugging output for the transitive constraint optimization. by drh · 5 weeks ago
  11. b3bcf48 Do not use a partial index if the truth of the WHERE clause does not depend by drh · 7 weeks ago silly-partial-indexes
  12. 691b44a Back out the "low-quality index" query planner hack of check-in by drh · 9 weeks ago
  13. 0243ca8 Correctly handle the case of a multi-column UNIQUE constraint that contains by drh · 3 months ago
  14. 483e118 Improved estimate on the number of output rows in a recursive common table expression by drh · 3 months ago
  15. cebf06c Make use of the flexible-array feature of C99, when available, to try to by drh · 4 months ago
  16. cc803b2 The number of declared columns in an index is limited to SQLITE_LIMIT_COLUMN. by drh · 5 months ago
  17. d8c37bb Remove an ALWAYS() in the star-query heuristic that is sometimes false if you by drh · 6 months ago
  18. 2228567 Further comment improvements in the star-query heuristic. Add an ALWAYS() by drh · 6 months ago
  19. fe54b7a Small size and complexity reduction on the star-query heuristic. Improved by drh · 6 months ago
  20. fb9e8e4 Revise the strategy used by the star-query heuristic: Instead of decreasing by drh · 6 months ago
  21. 0186ee1 Improvments to debug output on the star-query heuristic. by drh · 6 months ago
  22. dea434e Avoid calling computeMxChoice() after an OOM as some assert()s can fail by drh · 6 months ago
  23. bc7e41c Remove an incorrect ALWAYS() added in check-in [7cfbe14d199bb631]. by drh · 6 months ago
  24. d37412b The debugging output for WhereLoop objects now shows cost by drh · 6 months ago star-query-heuristic
  25. f1c5830 Minor tweaks to the star-query detection and processing. by drh · 6 months ago
  26. 299fe02 When looking for star-queries, do not count a table as a dimension table by drh · 6 months ago
  27. 1519675 Fix a possible infinity loop in debugging-printf logic in the query planner. by drh · 6 months ago
  28. 3640785 Add an SQLITE_TESTCTRL_OPTIMIZATION mask that can disable the query planner by drh · 6 months ago
  29. 0f4de9b Add a simple test case (many more are coming soon to TH3). Fix an obsolete by drh · 6 months ago without-rowid-autoidx
  30. 50c4420 Add support for automatic query-time indexes on WITHOUT ROWID tables. by drh · 6 months ago
  31. e432f2a For the purpose of the query planner heuristic added by [38db9b5c83], a query by drh · 6 months ago
  32. d1047fa When choosing between two indexes with the same cost, pick the one with the by drh · 6 months ago consider-idx-width
  33. 874b5e9 Variable names and conditional logic simplified in where.c. These by drh · 6 months ago
  34. f1747f9 Remove a stray tab character from a comment. by drh · 6 months ago
  35. ded37f3 Add comment to the columnIsGoodIndexCandidate() routine to record the results by drh · 7 months ago
  36. 9ee0251 Fix a harmless compiler warning that comes up when using SQLITE_DEBUG in by drh · 7 months ago
  37. c29bc73 Add NEVER() around branches that seems to have been made obsolete by by drh · 7 months ago
  38. 60ad526 Enhancements to sqlite3ExprImpliesExpr() so that it realizes that by drh · 8 months ago
  39. d4a65cf Provide the sqlite3ShowWhereTerm() interface callable interactively from by drh · 8 months ago
  40. 3dbddc5 Changes to EXPLAIN QUERY PLAN to identify covering index plan that use indexes on expressions. by dan · 9 months ago
  41. 624cb96 An assortment of comment typo fixes discovered by aspell. Add several new words to tool/custom.txt. No code changes. by stephan · 9 months ago
  42. 14101a3 Experimental change to explain query plan to identify covering indexes on expressions. by dan · 9 months ago eqp-covering-index-on-expr
  43. c857b9e Experimental change to allow expressions with subtypes to be read from indexes in situations where they are not used as function parameters. by dan · 10 months ago
  44. 7f0e0c7 New assert()s to help verify union access. No logic changes. Testing and by drh · 10 months ago
  45. c4e84b7 A testcase() macro added to help ensure that the fix to the omit-noop-join by drh · 11 months ago
  46. 934e796 Ensure that the WhereInfo.revMask bitmap is adjusted when tables are removed by drh · 11 months ago
  47. 27095fc Ensure that the WhereLoop.u.btree.pOrderBy field added by the by drh · 11 months ago
  48. d55ab84 Add the SQLITE_INDEX_SCAN_HEX bit to the sqlite3_index_info.idxFlags bitmask. by drh · 11 months ago
  49. 9904d82 Improved comments on byte-code subroutine calls to materialize subqueries. by drh · 11 months ago
  50. 1521ca4 Refactor the SrcItem object so that information about subqueries is stored by drh · 11 months ago
  51. b204b6a Give unique names to fields in the SrcItem object, to facilitate analysis of by drh · 11 months ago
  52. 2ed4f50 Fix handling of COLLATE. Add test cases for the same. Code cleanup for by drh · 11 months ago order-by-subquery
  53. 42f997d Bug fix in the subquery ORDER BY propagator. by drh · 11 months ago
  54. 7431886 Improvements to the subquery ORDER BY decision algorithm. Fewer false-negatives. by drh · 11 months ago
  55. 235b5d0 If a subquery is materialized due to an ORDER BY and that ordering is useful by drh · 11 months ago
  56. 6010980 Fix behavior change in the offset() SQL function introduced by by drh · 11 months ago
  57. 8bc2647 Do not attempt to use a covering index based purely on columns-used by drh · 11 months ago
  58. 3a799b3 Fix to the previous checkin: The colUsed parameter should have high-order bit by drh · 12 months ago
  59. 0a83dac Ensure the sqlite3_index_info.colUsed mask always includes the PK fields of WITHOUT ROWID vtabs in cases where they may be used. by dan · 12 months ago vtab-pk-colUsed-fix
  60. c855df6 Improved debugging output when using PRAGMA vdbe_addoptrace: by drh · 12 months ago
  61. 9175b18 Do not omit the ORDER BY clause from a recursive CTE just because the by drh · 1 year, 1 month ago
  62. 2fbb3fb Disable the omit-noop-join optimization when there are 64 or more terms in by drh · 1 year, 1 month ago
  63. 4703b7d Better optimize queries that use parameters in the LIMIT clause. by drh · 1 year, 1 month ago
  64. 7d24afa Better handle WHERE terms that are common to two or more OR branches when planning virtual table queries. by dan · 1 year, 2 months ago
  65. 0507e6e Be more aggressive about freeing memory associated with the by drh · 1 year, 2 months ago xbestindex-or-terms
  66. cadfdd4 Better handle WHERE terms that are common to two or more OR branches when planning virtual table queries. by dan · 1 year, 2 months ago
  67. 5ef9c89 Do not even try star-schema detection if the join has fewer than 5 tables, by drh · 1 year, 2 months ago
  68. d72ca8f Document the OP_Explain opcode. Add the WhereLoop.rRun value as P3 in by drh · 1 year, 2 months ago
  69. 1344b54 Ensure that the second pass call to wherePathSolver() always reports a positive by drh · 1 year, 2 months ago
  70. 1085eee Change an assert() (incorrectly) added by the previous check-in into a by drh · 1 year, 2 months ago star-schema
  71. eccb42e Small performance enhancement in wherePathSolver() by drh · 1 year, 2 months ago
  72. bb24c75 Improvements to comments and debugging output. by drh · 1 year, 2 months ago
  73. 54bfc94 Remember the amount of the heuristic cost adjustment associated with by drh · 1 year, 2 months ago
  74. c34ff12 Use a heuristic in the query planner to help it better cope with large by drh · 1 year, 2 months ago
  75. 05665e9 Tweaks to the query planner so that it is better able to deal with star by drh · 1 year, 2 months ago
  76. efe474a Increase the number of parallel paths in the query solver from 12 to 20. by drh · 1 year, 2 months ago
  77. 18970da Improve the automatic-index decision such that no attempt is made to create by drh · 1 year, 2 months ago
  78. 38af125 Query planner tuning: Increase the maximum number of simultaneous solutions by drh · 1 year, 2 months ago
  79. b23f92b Avoid creating an automatic index on a column that is known to be not very by drh · 1 year, 2 months ago auto-index-improvements
  80. 294cd87 Merge various enhancements that were being held on a branch until after the by drh · 1 year, 2 months ago
  81. 0462499 Fix the definition of sqlite3_vtab_distinct() such that return codes 2 and by drh · 1 year, 2 months ago
  82. 0445cd1 Fix a problem in where.c preventing SQLite from identifying some ONEROW scans, leading to (slightly) sub-optimal byte-code. by dan · 1 year, 2 months ago fix-onerow-opt
  83. 2eb9adb Assume that a function is able to return a subtype if either (1) it is itself by drh · 1 year, 3 months ago func-rw-subtype
  84. 297472a Have where.c ignore any plan from a virtual table that tries to use LIMIT/OFFSET without also using all WHERE constraints. by dan · 1 year, 3 months ago
  85. 14602ea Fix a problem with vector IN operators used with an index where the affinities by drh · 1 year, 3 months ago
  86. 0309fb9 Fix an uninitialized variable problem in the new code on this branch. by dan · 1 year, 3 months ago vector-in-fix
  87. 4f2f6c7 Extra robustness in the code that causes cursors to return NULL when they by drh · 1 year, 3 months ago
  88. 5749e1e Slight performance improvement for the new code on this branch. by dan · 1 year, 3 months ago
  89. d737fee Fix a problem where an expression like (a, b) IN (SELECT ...) might not use an index on (a, b) if the affinities and collation sequences of "a" and "b" are not identical. by dan · 1 year, 3 months ago
  90. 0526db3 Correct handling of OUTER JOIN when on or the other operand is a subquery by drh · 1 year, 3 months ago
  91. 6951c49 Do not allow changes to sqlite3ExprIsTableConstant() that support pushdown of by drh · 1 year, 3 months ago
  92. b411c4d Check-in [a9657c87c53c1922] is wrong: the IndexedExpr.bMaybeNullRow flag is by drh · 1 year, 4 months ago
  93. 8ce73ce Fix typos in comments. Provided ".wheretrace" debugging output for the by drh · 1 year, 4 months ago interstage-heuristic
  94. 7f7d0b1 Add a heuristic in between the two solver() passes of the query planner that by drh · 1 year, 4 months ago
  95. 9352cfa Improved comments in the query planner logic that computes the cost for a by drh · 1 year, 4 months ago
  96. ed6c9aa Fix an inaccuracy in automatic indexes that was exposed by the fix by drh · 1 year, 4 months ago
  97. 4a402b8 Improved "wheretrace" debugging output for calls to xBestIndex. No changes by drh · 1 year, 4 months ago
  98. 27a5ee8 Improvements to EXPLAIN QUERY PLAN output for multi-row VALUES claues. by drh · 1 year, 4 months ago
  99. f696591 Enhance the sqlite3ExprIsConstant() function so that it recognizes by drh · 1 year, 4 months ago
  100. 815e055 Attempt to reduce the memory used by VALUES clauses in as many statements as possible, not just INSERT. This branch still has problems. by dan · 1 year, 4 months ago