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Ensure the correct collation sequence is used for comparisons when delimiting a RANGE window.

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FossilOrigin-Name: 01eae68e85b31b7a9f08733459765bbd9bf9dad592bf64f10fc2fa32e02a89c2
This commit is contained in:
dan
2021-03-06 14:46:24 +00:00
parent fa9011ec70
commit 7f8653a257
4 changed files with 32 additions and 8 deletions
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3
src/window.c
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@@ -2065,6 +2065,7 @@ static void windowCodeRangeTest(
int regString = ++pParse->nMem; /* Reg. for constant value '' */
int arith = OP_Add; /* OP_Add or OP_Subtract */
int addrGe; /* Jump destination */
CollSeq *pColl;
assert( op==OP_Ge || op==OP_Gt || op==OP_Le );
assert( pOrderBy && pOrderBy->nExpr==1 );
@@ -2155,6 +2156,8 @@ static void windowCodeRangeTest(
** control skips over this test if the BIGNULL flag is set and either
** reg1 or reg2 contain a NULL value. */
sqlite3VdbeAddOp3(v, op, reg2, lbl, reg1); VdbeCoverage(v);
pColl = sqlite3ExprNNCollSeq(pParse, pOrderBy->a[0].pExpr);
sqlite3VdbeAppendP4(v, (void*)pColl, P4_COLLSEQ);
sqlite3VdbeChangeP5(v, SQLITE_NULLEQ);
assert( op==OP_Ge || op==OP_Gt || op==OP_Lt || op==OP_Le );