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Overview
| Comment: | Fixup comments on wctrlFlags value definitions. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
58b516e8c0b00a41bc0364eab267bc2e |
| User & Date: | drh 2016-05-19 19:31:30 |
Context
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2016-05-20
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| 12:22 | Autoconf configure.ac adjustment to try to get it to look for both editline and readline automatically. check-in: 645bd696 user: drh tags: trunk | |
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2016-05-19
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| 22:13 | In a query with both ORDER BY and LIMIT, if the inner loop satisfies the ORDER BY then try to cut short each invocation of the inner loop once the LIMIT has been satisfied. This check-in is a partial implementation only. check-in: 852d1eda user: drh tags: orderby-limit | |
| 19:31 | Fixup comments on wctrlFlags value definitions. check-in: 58b516e8 user: drh tags: trunk | |
| 18:56 | Clean up the WHERE_* macros used for the wctrlFlags parameter on the sqlite3WhereBegin() interface, freeing up some bits to be used for other things. check-in: d0130584 user: drh tags: trunk | |
Changes
Changes to src/sqliteInt.h.
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*/ #define WHERE_ORDERBY_NORMAL 0x0000 /* No-op */ #define WHERE_ORDERBY_MIN 0x0001 /* ORDER BY processing for min() func */ #define WHERE_ORDERBY_MAX 0x0002 /* ORDER BY processing for max() func */ #define WHERE_ONEPASS_DESIRED 0x0004 /* Want to do one-pass UPDATE/DELETE */ #define WHERE_ONEPASS_MULTIROW 0x0008 /* ONEPASS is ok with multiple rows */ #define WHERE_DUPLICATES_OK 0x0010 /* Ok to return a row more than once */ #define WHERE_OR_SUBCLAUSE 0x0020 /* Sub-WHERE for an OR term */ #define WHERE_GROUPBY 0x0040 /* pOrderBy is really a GROUP BY */ #define WHERE_DISTINCTBY 0x0080 /* pOrderby is really a DISTINCT clause */ #define WHERE_WANT_DISTINCT 0x0100 /* All output needs to be distinct */ #define WHERE_SORTBYGROUP 0x0200 /* Support sqlite3WhereIsSorted() */ #define WHERE_SEEK_TABLE 0x0400 /* Do not defer seeks on main table */ /* 0x0800 not currently used */ /* 0x1000 not currently used */ /* 0x2000 not currently used */ #define WHERE_USE_LIMIT 0x4000 /* There is a constant LIMIT clause */ /* 0x8000 not currently used */ /* Allowed return values from sqlite3WhereIsDistinct() */ #define WHERE_DISTINCT_NOOP 0 /* DISTINCT keyword not used */ #define WHERE_DISTINCT_UNIQUE 1 /* No duplicates */ #define WHERE_DISTINCT_ORDERED 2 /* All duplicates are adjacent */ |
| > | |
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*/ #define WHERE_ORDERBY_NORMAL 0x0000 /* No-op */ #define WHERE_ORDERBY_MIN 0x0001 /* ORDER BY processing for min() func */ #define WHERE_ORDERBY_MAX 0x0002 /* ORDER BY processing for max() func */ #define WHERE_ONEPASS_DESIRED 0x0004 /* Want to do one-pass UPDATE/DELETE */ #define WHERE_ONEPASS_MULTIROW 0x0008 /* ONEPASS is ok with multiple rows */ #define WHERE_DUPLICATES_OK 0x0010 /* Ok to return a row more than once */ #define WHERE_OR_SUBCLAUSE 0x0020 /* Processing a sub-WHERE as part of ** the OR optimization */ #define WHERE_GROUPBY 0x0040 /* pOrderBy is really a GROUP BY */ #define WHERE_DISTINCTBY 0x0080 /* pOrderby is really a DISTINCT clause */ #define WHERE_WANT_DISTINCT 0x0100 /* All output needs to be distinct */ #define WHERE_SORTBYGROUP 0x0200 /* Support sqlite3WhereIsSorted() */ #define WHERE_SEEK_TABLE 0x0400 /* Do not defer seeks on main table */ /* 0x0800 not currently used */ /* 0x1000 not currently used */ /* 0x2000 not currently used */ #define WHERE_USE_LIMIT 0x4000 /* Use the LIMIT in cost estimates */ /* 0x8000 not currently used */ /* Allowed return values from sqlite3WhereIsDistinct() */ #define WHERE_DISTINCT_NOOP 0 /* DISTINCT keyword not used */ #define WHERE_DISTINCT_UNIQUE 1 /* No duplicates */ #define WHERE_DISTINCT_ORDERED 2 /* All duplicates are adjacent */ |