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Overview
| Comment: | Avoid unnecessary calls to sqlite3GetCollSeq() for a small performance gain. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
503ba172e4c32e288abf006fc5cb53fd |
| User & Date: | drh 2017-07-06 02:49:26 |
Context
|
2017-07-06
| ||
| 03:06 | Small size reduction in findCollSeqEntry(). check-in: 55ecd303 user: drh tags: trunk | |
| 02:49 | Avoid unnecessary calls to sqlite3GetCollSeq() for a small performance gain. check-in: 503ba172 user: drh tags: trunk | |
| 01:28 | Slightly more compact implementation of the byte-code generator for the COMMIT and ROLLBACK commands. check-in: 4da663d9 user: drh tags: trunk | |
Changes
Changes to src/callback.c.
117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 |
**
** If required, this routine calls the 'collation needed' callback to
** request a definition of the collating sequence. If this doesn't work,
** an equivalent collating sequence that uses a text encoding different
** from the main database is substituted, if one is available.
*/
int sqlite3CheckCollSeq(Parse *pParse, CollSeq *pColl){
if( pColl ){
const char *zName = pColl->zName;
sqlite3 *db = pParse->db;
CollSeq *p = sqlite3GetCollSeq(pParse, ENC(db), pColl, zName);
if( !p ){
return SQLITE_ERROR;
}
assert( p==pColl );
|
| |
117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 |
**
** If required, this routine calls the 'collation needed' callback to
** request a definition of the collating sequence. If this doesn't work,
** an equivalent collating sequence that uses a text encoding different
** from the main database is substituted, if one is available.
*/
int sqlite3CheckCollSeq(Parse *pParse, CollSeq *pColl){
if( pColl && pColl->xCmp==0 ){
const char *zName = pColl->zName;
sqlite3 *db = pParse->db;
CollSeq *p = sqlite3GetCollSeq(pParse, ENC(db), pColl, zName);
if( !p ){
return SQLITE_ERROR;
}
assert( p==pColl );
|