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Overview
| Comment: | Extra comments on fields of the Window object. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
3dbed162518a73213bbfb137c7630645 |
| User & Date: | drh 2019-09-14 16:21:02 |
Context
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2019-09-14
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| 16:44 | Add the --no-rowids option to the ".recover" command. (check-in: 01d71b947a user: dan tags: trunk) | |
| 16:21 | Extra comments on fields of the Window object. (check-in: 3dbed16251 user: drh tags: trunk) | |
| 00:21 | Fix the windows inverse function on the JSON aggregates. (check-in: f464d847af user: drh tags: trunk) | |
Changes
Changes to src/sqliteInt.h.
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Expr *pStart; /* Expression for "<expr> PRECEDING" */ Expr *pEnd; /* Expression for "<expr> FOLLOWING" */ Window **ppThis; /* Pointer to this object in Select.pWin list */ Window *pNextWin; /* Next window function belonging to this SELECT */ Expr *pFilter; /* The FILTER expression */ FuncDef *pFunc; /* The function */ int iEphCsr; /* Partition buffer or Peer buffer */ int regAccum; int regResult; int csrApp; /* Function cursor (used by min/max) */ int regApp; /* Function register (also used by min/max) */ int regPart; /* Array of registers for PARTITION BY values */ Expr *pOwner; /* Expression object this window is attached to */ int nBufferCol; /* Number of columns in buffer table */ int iArgCol; /* Offset of first argument for this function */ int regOne; /* Register containing constant value 1 */ int regStartRowid; int regEndRowid; u8 bExprArgs; }; #ifndef SQLITE_OMIT_WINDOWFUNC void sqlite3WindowDelete(sqlite3*, Window*); void sqlite3WindowUnlinkFromSelect(Window*); void sqlite3WindowListDelete(sqlite3 *db, Window *p); Window *sqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*, u8); |
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Expr *pStart; /* Expression for "<expr> PRECEDING" */ Expr *pEnd; /* Expression for "<expr> FOLLOWING" */ Window **ppThis; /* Pointer to this object in Select.pWin list */ Window *pNextWin; /* Next window function belonging to this SELECT */ Expr *pFilter; /* The FILTER expression */ FuncDef *pFunc; /* The function */ int iEphCsr; /* Partition buffer or Peer buffer */ int regAccum; /* Accumulator */ int regResult; /* Interim result */ int csrApp; /* Function cursor (used by min/max) */ int regApp; /* Function register (also used by min/max) */ int regPart; /* Array of registers for PARTITION BY values */ Expr *pOwner; /* Expression object this window is attached to */ int nBufferCol; /* Number of columns in buffer table */ int iArgCol; /* Offset of first argument for this function */ int regOne; /* Register containing constant value 1 */ int regStartRowid; int regEndRowid; u8 bExprArgs; /* Defer evaluation of window function arguments ** due to the SQLITE_SUBTYPE flag */ }; #ifndef SQLITE_OMIT_WINDOWFUNC void sqlite3WindowDelete(sqlite3*, Window*); void sqlite3WindowUnlinkFromSelect(Window*); void sqlite3WindowListDelete(sqlite3 *db, Window *p); Window *sqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*, u8); |