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Overview
| Comment: | Fix a typo in a comment. No changes to code. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
ee4b74250ad7a4061421d44b490cb79f |
| User & Date: | drh 2015-05-16 18:31:44 |
Context
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2015-05-18
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| 04:24 | Make a hard copy of the results of a subquery lest the result of the subquery be referenced after a change to the table that generated the subquery result. check-in: 9c0d80907b user: drh tags: trunk | |
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2015-05-16
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| 19:17 | Fix the transitive constraint processing to only allow transitivity if the operands of the == or IS operator have compatible affinities. check-in: a46a247fbc user: drh tags: transitive-constraints | |
| 18:31 | Fix a typo in a comment. No changes to code. check-in: ee4b74250a user: drh tags: trunk | |
| 03:41 | Improve the clean target in the MSVC makefile. check-in: 2c1039d454 user: mistachkin tags: trunk | |
Changes
Changes to src/where.c.
632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 |
** Check to see if the given expression is a LIKE or GLOB operator that
** can be optimized using inequality constraints. Return TRUE if it is
** so and false if not.
**
** In order for the operator to be optimizible, the RHS must be a string
** literal that does not begin with a wildcard. The LHS must be a column
** that may only be NULL, a string, or a BLOB, never a number. (This means
** that virtual tables cannot participate in the LIKE optimization.) If the
** collating sequence for the column on the LHS must be appropriate for
** the operator.
*/
static int isLikeOrGlob(
Parse *pParse, /* Parsing and code generating context */
Expr *pExpr, /* Test this expression */
Expr **ppPrefix, /* Pointer to TK_STRING expression with pattern prefix */
|
| |
632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 |
** Check to see if the given expression is a LIKE or GLOB operator that
** can be optimized using inequality constraints. Return TRUE if it is
** so and false if not.
**
** In order for the operator to be optimizible, the RHS must be a string
** literal that does not begin with a wildcard. The LHS must be a column
** that may only be NULL, a string, or a BLOB, never a number. (This means
** that virtual tables cannot participate in the LIKE optimization.) The
** collating sequence for the column on the LHS must be appropriate for
** the operator.
*/
static int isLikeOrGlob(
Parse *pParse, /* Parsing and code generating context */
Expr *pExpr, /* Test this expression */
Expr **ppPrefix, /* Pointer to TK_STRING expression with pattern prefix */
|