Codestin Search App

691b44a Back out the "low-quality index" query planner hack of check-in by drh · 9 weeks ago
c071c47 Tamp down various harmless compiler warnings. Use "int" in places instead by drh · 5 months ago
ef86b94 Code changes that make it easier to prove that no 32-bit integer overflows by drh · 5 months ago
7fd936e Further reduction in the amount of memset() needed to initialize the Parse by drh · 5 months ago
fe15ed4 Fixes from code inspection: by drh · 9 months ago
b812341 Ensure that memory allocations in ANALYZE are always 8-byte aligned in order by drh · 11 months ago
a592883 Add extra assert() statements to the fixes on this branch. by dan · 1 year ago alignment-fixes
09a71d8 Add in a VdbeCoverage() macro needed by STAT4 that should have been part of by drh · 1 year, 5 months ago
e7bdb21 If a table has one or more rows and it has a partial index has zero rows, by drh · 1 year, 5 months ago optimize-after-shrink
4cfc19f Remove some unnecessary computations from ANALYZE so that ANALYZE runs with by drh · 1 year, 7 months ago avoid-low-quality-indexes
4ccf707 Extra steps taken to avoid using low-quality indexes in a query plan. by drh · 1 year, 7 months ago
04b9247 Extra space to prevent a buffer overread on corrupt STAT4 records. by drh · 2 years, 1 month ago
790adfd Do not overflow the Index.aSample[] array if the same index appears in by drh · 2 years, 3 months ago
8777bdb Do not even attempt to load the sqlite_stat4 table if the use of STAT4 is by drh · 2 years, 3 months ago
223c6b4 The sqlite_stat4.idx field is case insensitive. It should work even if by drh · 2 years, 3 months ago
a9fd5f2 New #ifdefs to omit code that is unused except under STAT4. by drh · 2 years, 4 months ago
aa9192e Improvements to register allocation, especially in the ANALYZE command. by drh · 2 years, 4 months ago
418f947 Disable factoring of constant values during ANALYZE. This is a temporary by drh · 2 years, 4 months ago
52786ec Add the tag-20230325-1 comment that was omitted from the prior check-in. by drh · 2 years, 4 months ago
4924e82 The fix at [2bf5413dc2c19d5f] was incomplete in that it failed to clear by drh · 2 years, 4 months ago
28fe02c Fix byte-code register allocation in ANALYZE for STAT4 when there multiple by drh · 2 years, 4 months ago
45ae9d6 New assert() statements to verify that sqlite3DeleteIndexSamples() is always by drh · 2 years, 6 months ago
4bc1cc1 This experimental branch attempts to use columns for an index-on-expression by drh · 2 years, 9 months ago
6099592 When computing STAT1 values using ANALYZE, if a ratio comes out to be between by drh · 3 years, 3 months ago
c45924e Remove unused P4 types on the Opcode object. Saves a few bytes of code by drh · 3 years, 5 months ago
9966621 Use the IsOrdinaryTable() macro, not a test of tnum, to distinguish tables by drh · 3 years, 9 months ago
5bf4715 Add the sqlite3ResultStrAccum() internal interface to simplify the by drh · 3 years, 10 months ago
e85e1da Fix harmless compiler warnings. by drh · 3 years, 10 months ago
ebd1ff6 Ensure that sqlite_stat1 and sqlite_stat4 are ordinary tables (not views or by drh · 3 years, 10 months ago
cf9d36d Refactor field names in the Column object, zCnName and zCnColl, to make them by drh · 4 years ago
4038696 Sometimes it makes sense to do a full table scan rather than try to use by drh · 4 years, 9 months ago
abc3815 Continuing work toward supporting unsigned 32-bit page numbers. by drh · 5 years ago
e557b01 Improved VDBE comments on the ANALYZE code generator. This change by drh · 5 years ago
3d42fb7 Fix harmless compiler warnings. by drh · 5 years ago
f72981f Add a missing VdbeCoverage() macro. by drh · 5 years ago approximate-analyze
31e3744 Simple fixes to PRAGMA analysis_limit. by drh · 5 years ago
49a76a8 Add "PRAGMA analysis_limit=N;" to limit the number of rows visited by by drh · 5 years ago
78a50d7 Fix the build for when SQLITE_ENABLE_STAT4 is defined. by drh · 5 years ago
59a8cb7 Add the SQLITE_ANALYZE_LIMIT compile-time option (expected to be temporary) by drh · 5 years ago
9f27463 Provide an estimated row count to stat_init() for STAT1 analysis. by drh · 5 years ago
e50478d Remove the SQLITE_OMIT_BTREECOUNT option. Btree count is required. by drh · 5 years ago
dc4a168 Improved bytecode comments for the ANALYZE command. by drh · 5 years ago
9d33d9e Background work for experiments trying to enhance ANALYZE so that it runs by drh · 5 years ago
afa1eca Cleaner separation of the STAT4-specific logic in the implementation of ANALYZE. by drh · 5 years ago
920cf59 Simplify the bytecode generation for SQL function calls such that the by drh · 6 years ago
b9bcf7c Refactor names of column index transformation functions, for clarity. by drh · 6 years ago
31f6962 Performance optimization to the lookaside-memory disabling mechanism. by drh · 6 years ago
725dd72 Ensure that the optional "sz=N" parameter that can be manually added to the by drh · 6 years ago
5eae1d1 More legacy STAT3 code removed. by drh · 6 years ago omit-stat3
175b8f0 Remove support for STAT3. The sqlite_stat3 tables are ignored, if they by drh · 6 years ago
ec4ccdb A new implementation of sqlite3VdbeMakeLabel() is faster and makes fewer by drh · 7 years ago
72d03a6 Change the SQLITE_Stat34 bit of the optimization test-control so that it by drh · 7 years ago
6ccbd27 Further improvements to bytecode branch testing. Fix cases where the by drh · 7 years ago
980cf25 Update Makefile.msc to include window.c in the build. by dan · 7 years ago
86fb6e1 Start of experimental implementation of SQL window functions. Does not yet work. by dan · 7 years ago
cedfecf Fix the ANALYZE command so that it will process tables whose names begin by drh · 7 years ago
3739f29 Fix a problem in the sessions module with logging sqlite_stat1 rows for which by dan · 8 years ago
614efe2 Experimental change to include changes made to the sqlite_stat1 table in by dan · 8 years ago
49297c8 Fix an incorrect assert in the ANALYZE logic for STAT4 on WITHOUT ROWID tables. by drh · 8 years ago
bce0414 Do a single OP_Expire at the very end of "PRAGMA optimize", and omit the by drh · 8 years ago
114ce7a Merge integrity_check and other improvements from trunk. by drh · 8 years ago
24d772c Move a branch condition in analyze.c inside an #ifdef SQLITE_ENABLE_STAT4 block. by dan · 8 years ago
bd1d270 Improve the performance of ANALYZE when SQLITE_ENABLE_STAT4 is defined. by dan · 8 years ago
4a54bb5 Add the OP_SqlExec opcode and use it to implement "PRAGMA analyze_as_needed", by drh · 8 years ago
dfe11ba Fix errors in the table resize detection. by drh · 8 years ago
182e84c In the analyze_as_needed pragma, avoid running unnecessary OP_LoadAnalysis by drh · 8 years ago
5e98e83 The analyze_as_needed pragma now responds to table size growth and will by drh · 8 years ago
72052a7 Add the "PRAGMA analyze_as_needed" command. by drh · 8 years ago
33bec3f Enhance the Index and Table objects so that they remember if their stats come by drh · 8 years ago
35497fc Improved comments on the statGet() implementation in ANALYZE. No changes by drh · 8 years ago
785d8ed In the STAT4 computations, ensure that the aAvgEq values do not go negative. by drh · 9 years ago
895decf Avoid passing NULL pointers to memcmp() or memcpy(), even when the by dan · 9 years ago
69c3382 Rename the Db.zName field to Db.zDbSName to make it more descriptive and to by drh · 9 years ago
51b55a3 Fix harmless compiler warnings. by drh · 9 years ago
f6661a8 When reading an sqlite_stat1 table with missing entries for some indexes, by drh · 9 years ago
32c4990 Add the SQLITE_NOMEM_BKPT macro to enhance the ability to debug OOM errors. by drh · 9 years ago
80738d9 Improvements to the application-defined function mechanism so that it is by drh · 9 years ago many-app-functions
fad3039 Enhance ability to debug out-of-memory errors. by mistachkin · 9 years ago
575fad6 Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority by drh · 9 years ago oom-handling
4a642b6 Improvements to the way that OOM errors are processed. by drh · 9 years ago
9b34abe Use sqlite3VdbeAddOp4() rather than a separate sqlite3VdbeChangeP4() call, for by drh · 10 years ago
2d80151 Combine the xFunc and xStep pointers of the FuncDef object into a single by drh · 10 years ago
8b4a94a Add the sqlite3_strlike() interface, which might be useful for implementing by drh · 10 years ago vtab-like-operator
34de0c8 Merge enhancements from trunk. by drh · 10 years ago
076e85f Add the sqlite3VdbeLoadString() and sqlite3VdbeMultiLoad() routines to help by drh · 10 years ago
2991ba0 Add the sqlite3VdbeAddGoto(v,i) routine as a shorthand for by drh · 10 years ago
1f9ca2c Add code to maintain indexes with expression arguments across DELETE, INSERT, by drh · 10 years ago
9c7c913 Cache the sqlite3_context structure in the P4 operand of VDBE programs by drh · 10 years ago
4eed053 Fix a memory leak caused by duplicate entries in the sqlite_stat1 table. by dan · 10 years ago
4081d5d Add logic to releasetest.tcl that detects -fsanitize=undefined errors. by drh · 11 years ago
5cca94e Fix a buffer overread that might occur in analyze.c if SQLITE_ENABLE_STAT4 was defined. by dan · 11 years ago
0da10d32 Always reinitialized the Index.bUnordered and Index.noSkipscan flags before by drh · 11 years ago
664f85d Add an ALWAYS on an always-true branch in wal.c. by drh · 11 years ago
f9df2fb Adding the "noskipscan" token to an sqlite_stat1.stat field prevents an by drh · 11 years ago noskipscan-token
d7d7147 Change the 0x800 bit of SQLITE_TESTCTRL_OPTIMIZATIONS so that it disables by drh · 11 years ago
9f07cf7 Take steps to avoid misestimating range query costs based on STAT4 data by drh · 11 years ago
85d117b Remove unreachable branches in decodeIntArray() when compiling without by drh · 11 years ago
75b170b Avoid leaking Index.aiRowEst memory if an OOM causes a rollback which deletes by drh · 11 years ago
0c1a18b Fix a division-by-zero error that might occur if the sqlite_stat1 table is corrupt. by dan · 11 years ago
43085d7 Improve the accuracy of the estimates used when searching an index for values not present in any stat4 samples under some circumstances. by dan · 11 years ago