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Overview
| Comment: | Minor code simplification in the ALTER TABLE logic. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
bfc4e7f30e4654b9603457fb6a413682 |
| User & Date: | drh 2017-06-28 01:12:53 |
Context
|
2017-06-28
| ||
| 01:21 | Simplify error handling logic in sqlite3_exec() to save about 40 bytes. (check-in: 6480916c user: drh tags: trunk) | |
| 01:12 | Minor code simplification in the ALTER TABLE logic. (check-in: bfc4e7f3 user: drh tags: trunk) | |
| 00:55 | Avoid an unnecessary call to sqlite3XPrintf() in the code generator, for a performance improvement. (check-in: 29d6ceb3 user: drh tags: trunk) | |
Changes
Changes to src/alter.c.
371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 |
** (either with ALTER TABLE ... RENAME TO or ALTER TABLE ... ADD COLUMN).
** If the table is a system table, this function leaves an error message
** in pParse->zErr (system tables may not be altered) and returns non-zero.
**
** Or, if zName is not a system table, zero is returned.
*/
static int isSystemTable(Parse *pParse, const char *zName){
if( sqlite3Strlen30(zName)>6 && 0==sqlite3StrNICmp(zName, "sqlite_", 7) ){
sqlite3ErrorMsg(pParse, "table %s may not be altered", zName);
return 1;
}
return 0;
}
/*
|
| |
371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 |
** (either with ALTER TABLE ... RENAME TO or ALTER TABLE ... ADD COLUMN).
** If the table is a system table, this function leaves an error message
** in pParse->zErr (system tables may not be altered) and returns non-zero.
**
** Or, if zName is not a system table, zero is returned.
*/
static int isSystemTable(Parse *pParse, const char *zName){
if( 0==sqlite3StrNICmp(zName, "sqlite_", 7) ){
sqlite3ErrorMsg(pParse, "table %s may not be altered", zName);
return 1;
}
return 0;
}
/*
|