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Overview
| Comment: | Fix a typo in a comment in expr.c. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | rowvalue |
| Files: | files | file ages | folders |
| SHA1: |
288e934f356ff6276b3e7581ac0f998c |
| User & Date: | dan 2016-09-06 12:04:50 |
Context
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2016-09-06
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| 14:37 | Enhance the sqlite3GetTempRange() and sqlite3ReleaseTempRange() internal routines so that they use sqlite3GetTempReg() and sqlite3ReleaseTempReg() when nReg==1. check-in: 4071da2f user: drh tags: rowvalue | |
| 12:04 | Fix a typo in a comment in expr.c. check-in: 288e934f user: dan tags: rowvalue | |
|
2016-09-05
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| 22:50 | Simplified logic to extract a column from a row value. check-in: e8f105c3 user: drh tags: rowvalue | |
Changes
Changes to src/expr.c.
391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 |
** It is ok for pVector to be a scalar (as long as iField==0). ** In that case, this routine works like sqlite3ExprDup(). ** ** The caller owns the returned Expr object and is responsible for ** ensuring that the returned value eventually gets freed. ** ** The caller retains ownership of pVector. If pVector is a TK_SELECT, ** then the returne object will reference pVector and so pVector must remain ** valid for the life of the returned object. If pVector is a TK_VECTOR ** or a scalar expression, then it can be deleted as soon as this routine ** returns. ** ** A trick to cause a TK_SELECT pVector to be deleted together with ** the returned Expr object is to attach the pVector to the pRight field ** of the returned TK_SELECT_COLUMN Expr object. |
| |
391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 |
** It is ok for pVector to be a scalar (as long as iField==0).
** In that case, this routine works like sqlite3ExprDup().
**
** The caller owns the returned Expr object and is responsible for
** ensuring that the returned value eventually gets freed.
**
** The caller retains ownership of pVector. If pVector is a TK_SELECT,
** then the returned object will reference pVector and so pVector must remain
** valid for the life of the returned object. If pVector is a TK_VECTOR
** or a scalar expression, then it can be deleted as soon as this routine
** returns.
**
** A trick to cause a TK_SELECT pVector to be deleted together with
** the returned Expr object is to attach the pVector to the pRight field
** of the returned TK_SELECT_COLUMN Expr object.
|