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Overview
| Comment: | Fix issues with ALTER TABLE RENAME COLUMN associated with OOM errors. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | alter-table-rename-column |
| Files: | files | file ages | folders |
| SHA3-256: | 0b28dd5c2e4908d5e49eaedd359492e4 |
| User & Date: | drh 2018-08-13 13:43:11 |
Context
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2018-08-13
| ||
| 15:09 | Fix legacy comments on Token. Begin commenting the new ALTER TABLE RENAME COLUMN code. Fix a memory leak in the sqlite_rename_column() SQL function. check-in: 32edc892 user: drh tags: alter-table-rename-column | |
| 13:43 | Fix issues with ALTER TABLE RENAME COLUMN associated with OOM errors. check-in: 0b28dd5c user: drh tags: alter-table-rename-column | |
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2018-08-11
| ||
| 20:46 | Add the "atrc" test program. "Atrc" is short for "ALTER TABLE RENAME COLUMN". See the header comment on the program itself for further information. check-in: ed64a55a user: drh tags: alter-table-rename-column | |
Changes
Changes to src/alter.c.
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memset(&sParse, 0, sizeof(sParse));
sParse.eParseMode = PARSE_MODE_RENAME_COLUMN;
sParse.db = db;
sParse.nQueryLoop = 1;
rc = sqlite3RunParser(&sParse, zSql, &zErr);
assert( sParse.pNewTable==0 || sParse.pNewIndex==0 );
if( rc==SQLITE_OK && sParse.pNewTable==0 && sParse.pNewIndex==0 ){
rc = SQLITE_CORRUPT_BKPT;
}
if( rc==SQLITE_OK ){
zQuot = sqlite3_mprintf("\"%w\"", zNew);
if( zQuot==0 ){
................................................................................
if( rc!=SQLITE_OK ){
if( zErr ){
sqlite3_result_error(context, zErr, -1);
}else{
sqlite3_result_error_code(context, rc);
}
sqlite3DbFree(db, zErr);
sqlite3_free(zQuot);
return;
}
if( bQuote ){
zNew = zQuot;
nNew = nQuot;
}
................................................................................
sqlite3DbFree(db, pBest);
}
sqlite3_result_text(context, zOut, -1, SQLITE_TRANSIENT);
sqlite3DbFree(db, zOut);
}
if( sParse.pVdbe ){
sqlite3VdbeFinalize(sParse.pVdbe);
}
sqlite3DeleteTable(db, sParse.pNewTable);
if( sParse.pNewIndex ) sqlite3FreeIndex(db, sParse.pNewIndex);
renameTokenFree(db, sParse.pRename);
sqlite3ParserReset(&sParse);
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memset(&sParse, 0, sizeof(sParse)); sParse.eParseMode = PARSE_MODE_RENAME_COLUMN; sParse.db = db; sParse.nQueryLoop = 1; rc = sqlite3RunParser(&sParse, zSql, &zErr); assert( sParse.pNewTable==0 || sParse.pNewIndex==0 ); if( db->mallocFailed ) rc = SQLITE_NOMEM; if( rc==SQLITE_OK && sParse.pNewTable==0 && sParse.pNewIndex==0 ){ rc = SQLITE_CORRUPT_BKPT; } if( rc==SQLITE_OK ){ zQuot = sqlite3_mprintf("\"%w\"", zNew); if( zQuot==0 ){ ................................................................................ if( rc!=SQLITE_OK ){ if( zErr ){ sqlite3_result_error(context, zErr, -1); }else{ sqlite3_result_error_code(context, rc); } sqlite3DbFree(db, zErr); goto renameColumnFunc_done; } if( bQuote ){ zNew = zQuot; nNew = nQuot; } ................................................................................ sqlite3DbFree(db, pBest); } sqlite3_result_text(context, zOut, -1, SQLITE_TRANSIENT); sqlite3DbFree(db, zOut); } renameColumnFunc_done: if( sParse.pVdbe ){ sqlite3VdbeFinalize(sParse.pVdbe); } sqlite3DeleteTable(db, sParse.pNewTable); if( sParse.pNewIndex ) sqlite3FreeIndex(db, sParse.pNewIndex); renameTokenFree(db, sParse.pRename); sqlite3ParserReset(&sParse); |
Changes to src/parse.y.
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if( (hasCollate || sortOrder!=SQLITE_SO_UNDEFINED)
&& pParse->db->init.busy==0
){
sqlite3ErrorMsg(pParse, "syntax error after column name \"%.*s\"",
pIdToken->n, pIdToken->z);
}
sqlite3ExprListSetName(pParse, p, pIdToken, 1);
if( IN_RENAME_COLUMN ){
sqlite3RenameToken(pParse, (void*)(p->a[p->nExpr-1].zName), pIdToken);
}
return p;
}
} // end %include
eidlist_opt(A) ::= . {A = 0;}
|
| |
1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 |
if( (hasCollate || sortOrder!=SQLITE_SO_UNDEFINED)
&& pParse->db->init.busy==0
){
sqlite3ErrorMsg(pParse, "syntax error after column name \"%.*s\"",
pIdToken->n, pIdToken->z);
}
sqlite3ExprListSetName(pParse, p, pIdToken, 1);
if( IN_RENAME_COLUMN && p ){
sqlite3RenameToken(pParse, (void*)(p->a[p->nExpr-1].zName), pIdToken);
}
return p;
}
} // end %include
eidlist_opt(A) ::= . {A = 0;}
|