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| author | drh <> | 2022-11-30 19:11:31 +0000 |
|---|---|---|
| committer | drh <> | 2022-11-30 19:11:31 +0000 |
| commit | 2a757658a042586820c0f292d4292e052202fd3d (patch) | |
| tree | b40176c2d61631f36f08074fe843793f284bc28e /src/sqliteInt.h | |
| parent | ec192e0659cd0fac1a29616c81a693f696f6f24a (diff) | |
| download | sqlite-2a757658a042586820c0f292d4292e052202fd3d.tar.gz sqlite-2a757658a042586820c0f292d4292e052202fd3d.zip | |
Attempt to rationalize the bits associated with ".wheretrace". Provide
a decoder key in sqliteInt.h for what each bit is intended to do.
FossilOrigin-Name: 8ec361695a107a94f2cf6a7fe509656a99d85d49bd7c74133c69903f059a2675
Diffstat (limited to 'src/sqliteInt.h')
| -rw-r--r-- | src/sqliteInt.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h index 7d7e5b56f..4711e4f09 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -1073,6 +1073,36 @@ extern u32 sqlite3WhereTrace; # define WHERETRACE(K,X) #endif +/* +** Bits for the sqlite3WhereTrace mask: +** +** (---any--) Top-level block structure +** 0x-------F High-level debug messages +** 0x----FFF- More detail +** 0xFFFF---- Low-level debug messages +** +** 0x00000001 Code generation +** 0x00000002 Solver +** 0x00000004 Solver costs +** 0x00000008 WhereLoop inserts +** +** 0x00000010 Display sqlite3_index_info xBestIndex calls +** 0x00000020 Range an equality scan metrics +** 0x00000040 IN operator decisions +** 0x00000080 WhereLoop cost adjustements +** 0x00000100 +** 0x00000200 Covering index decisions +** 0x00000400 OR optimization +** 0x00000800 Index scanner +** 0x00001000 More details associated with code generation +** 0x00002000 +** 0x00004000 Show all WHERE terms at key points +** 0x00008000 Show the full SELECT statement at key places +** +** 0x00010000 Show more detail when printing WHERE terms +** 0x00020000 Show WHERE terms returned from whereScanNext() +*/ + /* ** An instance of the following structure is used to store the busy-handler |