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Overview
| Comment: | Simplified logic to extract a column from a row value. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | rowvalue |
| Files: | files | file ages | folders |
| SHA1: |
e8f105c3009e9b667db2afc0088b020a |
| User & Date: | drh 2016-09-05 22:50:48 |
Context
|
2016-09-06
| ||
| 12:04 | Fix a typo in a comment in expr.c. (check-in: 288e934f user: dan tags: rowvalue) | |
|
2016-09-05
| ||
| 22:50 | Simplified logic to extract a column from a row value. (check-in: e8f105c3 user: drh tags: rowvalue) | |
| 19:57 | Fix an assert() so that it does C-compiler does not combine an assert() conditional with a production code conditional and thereby confuse the mutation testing script. (check-in: 2fa5288a user: drh tags: rowvalue) | |
Changes
Changes to src/expr.c.
367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 |
** just the expression for the i-th term of the result set, and may
** not be ready for evaluation because the table cursor has not yet
** been positioned.
*/
Expr *sqlite3VectorFieldSubexpr(Expr *pVector, int i){
assert( i<sqlite3ExprVectorSize(pVector) );
if( sqlite3ExprIsVector(pVector) ){
if( pVector->op==TK_SELECT
|| (pVector->op==TK_REGISTER && pVector->op2==TK_SELECT)
){
return pVector->x.pSelect->pEList->a[i].pExpr;
}else{
return pVector->x.pList->a[i].pExpr;
}
}
return pVector;
}
|
| | < |
367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 |
** just the expression for the i-th term of the result set, and may
** not be ready for evaluation because the table cursor has not yet
** been positioned.
*/
Expr *sqlite3VectorFieldSubexpr(Expr *pVector, int i){
assert( i<sqlite3ExprVectorSize(pVector) );
if( sqlite3ExprIsVector(pVector) ){
assert( pVector->op2==0 || pVector->op==TK_REGISTER );
if( pVector->op==TK_SELECT || pVector->op2==TK_SELECT ){
return pVector->x.pSelect->pEList->a[i].pExpr;
}else{
return pVector->x.pList->a[i].pExpr;
}
}
return pVector;
}
|