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Overview
| Comment: | Fix the header comment on codeEqualityTerm(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | rowvalue |
| Files: | files | file ages | folders |
| SHA1: |
b7e710e406ed22bcc316099b5e200b6b |
| User & Date: | drh 2016-09-06 15:25:53 |
Context
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2016-09-06
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| 16:33 | Simplify the fix in commit [7d9bd22c]. check-in: bd5a3420 user: dan tags: rowvalue | |
| 15:25 | Fix the header comment on codeEqualityTerm(). check-in: b7e710e4 user: drh tags: rowvalue | |
| 14:58 | Fix a problem handling (a, b) IN (SELECT ...) expressions when there is an index on just one of "a" or "b". check-in: 231c72d9 user: dan tags: rowvalue | |
Changes
Changes to src/wherecode.c.
378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 |
}
/*
** Generate code for a single equality term of the WHERE clause. An equality
** term can be either X=expr or X IN (...). pTerm is the term to be
** coded.
**
** The current value for the constraint is left in register iReg.
**
** For a constraint of the form X=expr, the expression is evaluated in
** straight-line code. For constraints of the form X IN (...)
** this routine sets up a loop that will iterate over all values of X.
*/
static int codeEqualityTerm(
Parse *pParse, /* The parsing context */
|
| > > > > |
378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 |
} /* ** Generate code for a single equality term of the WHERE clause. An equality ** term can be either X=expr or X IN (...). pTerm is the term to be ** coded. ** ** The current value for the constraint is left in a register, the index ** of which is returned. An attempt is made store the result in iTarget but ** this is only guaranteed for TK_ISNULL and TK_IN constraints. If the ** constraint is a TK_EQ or TK_IS, then the current value might be left in ** some other register and it is the caller's responsibility to compensate. ** ** For a constraint of the form X=expr, the expression is evaluated in ** straight-line code. For constraints of the form X IN (...) ** this routine sets up a loop that will iterate over all values of X. */ static int codeEqualityTerm( Parse *pParse, /* The parsing context */ |