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Enhance the LIKE/GLOB query optimization so that it works as long as there

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is an index with the appropriate collating sequence and even if the default
collating sequence of the column is different.
Ticket [4711020446da7d93d99].

FossilOrigin-Name: 9f932655f9eb9fdab16d7deed98b7cad414e0ca6
This commit is contained in:
drh
2010-07-22 17:49:52 +00:00
parent 4be02b901c
commit 8342e49f62
7 changed files with 139 additions and 40 deletions
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src/sqliteInt.h
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@@ -2869,7 +2869,8 @@ int sqlite3ReadSchema(Parse *pParse);
CollSeq *sqlite3FindCollSeq(sqlite3*,u8 enc, const char*,int);
CollSeq *sqlite3LocateCollSeq(Parse *pParse, const char*zName);
CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr);
Expr *sqlite3ExprSetColl(Parse *pParse, Expr *, Token *);
Expr *sqlite3ExprSetColl(Expr*, CollSeq*);
Expr *sqlite3ExprSetCollByToken(Parse *pParse, Expr*, Token*);
int sqlite3CheckCollSeq(Parse *, CollSeq *);
int sqlite3CheckObjectName(Parse *, const char *);
void sqlite3VdbeSetChanges(sqlite3 *, int);