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When generating code for partial indexes, be sure not to modify the

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index condition expression in the schema.

FossilOrigin-Name: e63d01c69c3e50f49ee3022a519c4f3e91f00520
This commit is contained in:
drh
2015-06-11 13:58:35 +00:00
parent 033eb6c8d3
commit 72bc8208f0
7 changed files with 51 additions and 16 deletions
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15
src/expr.c
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@@ -3702,6 +3702,21 @@ void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
sqlite3ReleaseTempReg(pParse, regFree2);
}
/*
** Like sqlite3ExprIfFalse() except that a copy is made of pExpr before
** code generation, and that copy is deleted after code generation. This
** ensures that the original pExpr is unchanged.
*/
void sqlite3ExprIfFalseDup(Parse *pParse, Expr *pExpr, int dest,int jumpIfNull){
sqlite3 *db = pParse->db;
Expr *pCopy = sqlite3ExprDup(db, pExpr, 0);
if( db->mallocFailed==0 ){
sqlite3ExprIfFalse(pParse, pCopy, dest, jumpIfNull);
}
sqlite3ExprDelete(db, pCopy);
}
/*
** Do a deep comparison of two expression trees. Return 0 if the two
** expressions are completely identical. Return 1 if they differ only