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Enhance the sqlite3_stmt_explain() interface so that avoids unnecessary

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reprepare operations.

FossilOrigin-Name: 050f773addd605f6690348c98e9000a9a3663bbc26288a71973fd7b40468e8ab
This commit is contained in:
drh
2023-07-18 17:29:05 +00:00
parent e393f6eff0
commit d1db37a2f3
7 changed files with 103 additions and 69 deletions
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7
src/select.c
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@@ -2101,13 +2101,6 @@ void sqlite3GenerateColumnNames(
int fullName; /* TABLE.COLUMN if no AS clause and is a direct table ref */
int srcName; /* COLUMN or TABLE.COLUMN if no AS clause and is direct */
#ifndef SQLITE_OMIT_EXPLAIN
/* If this is an EXPLAIN, skip this step */
if( pParse->explain ){
return;
}
#endif
if( pParse->colNamesSet ) return;
/* Column names are determined by the left-most term of a compound select */
while( pSelect->pPrior ) pSelect = pSelect->pPrior;