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Add new routines to simplify dealing with collating sequences in expressions:

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sqlite3ExprNNCollSeq() and sqlite3ExprCollSeqMatch().

FossilOrigin-Name: 490e488ea963fe725b16212822c8608f2b6abce688931b611446bc2cbfe6b87c
This commit is contained in:
drh
2017-09-28 01:58:23 +00:00
parent db8e68b4cd
commit 70efa84da7
7 changed files with 55 additions and 35 deletions
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5
src/select.c
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@@ -1109,10 +1109,7 @@ static KeyInfo *keyInfoFromExprList(
if( pInfo ){
assert( sqlite3KeyInfoIsWriteable(pInfo) );
for(i=iStart, pItem=pList->a+iStart; i<nExpr; i++, pItem++){
CollSeq *pColl;
pColl = sqlite3ExprCollSeq(pParse, pItem->pExpr);
if( !pColl ) pColl = db->pDfltColl;
pInfo->aColl[i-iStart] = pColl;
pInfo->aColl[i-iStart] = sqlite3ExprNNCollSeq(pParse, pItem->pExpr);
pInfo->aSortOrder[i-iStart] = pItem->sortOrder;
}
}