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Overview
| Comment: | Enhance the comment on the sqlite3_index_constraint.iColumn field to help bring attention to the fact that it can be negative for a rowid column. |
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| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
be35c1ae8eff7940de37725bdda3bbad |
| User & Date: | drh 2016-02-02 02:05:07 |
Context
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2016-02-02
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| 03:15 | Update the change log. check-in: 430d0b230f user: drh tags: trunk | |
| 02:05 | Enhance the comment on the sqlite3_index_constraint.iColumn field to help bring attention to the fact that it can be negative for a rowid column. check-in: be35c1ae8e user: drh tags: trunk | |
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2016-01-26
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| 15:04 | Update the file format document to indicate that the number of rows in an index in sqlite_stat1 can be less than the number of table rows in the case of a partial index. check-in: 42f14ae85f user: drh tags: trunk | |
Changes
Changes to pages/vtab.in.
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forms the reply. The [sqlite3_index_info] structure looks like this:
<blockquote><pre>
struct sqlite3_index_info {
/* Inputs */
const int nConstraint; /* Number of entries in aConstraint */
const struct sqlite3_index_constraint {
int iColumn; /* Column on left-hand side of constraint */
unsigned char op; /* Constraint operator */
unsigned char usable; /* True if this constraint is usable */
int iTermOffset; /* Used internally - xBestIndex should ignore */
} *const aConstraint; /* Table of WHERE clause constraints */
const int nOrderBy; /* Number of terms in the ORDER BY clause */
const struct sqlite3_index_orderby {
int iColumn; /* Column number */
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578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 |
forms the reply. The [sqlite3_index_info] structure looks like this:
<blockquote><pre>
struct sqlite3_index_info {
/* Inputs */
const int nConstraint; /* Number of entries in aConstraint */
const struct sqlite3_index_constraint {
int iColumn; /* Column constrained. -1 for ROWID */
unsigned char op; /* Constraint operator */
unsigned char usable; /* True if this constraint is usable */
int iTermOffset; /* Used internally - xBestIndex should ignore */
} *const aConstraint; /* Table of WHERE clause constraints */
const int nOrderBy; /* Number of terms in the ORDER BY clause */
const struct sqlite3_index_orderby {
int iColumn; /* Column number */
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