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Refactor the code that figures out which SELECT in a cascade of nested queries

a particular aggregate function belongs to.  This fixes the problem
reported by [forum:/forumpost/c7cc2aa3546e39c1|forum post c7cc2aa3546e39c1].
New test cases in dbsqlfuzz and th3.

FossilOrigin-Name: 74aec5dd1df95b5635f4da1f13753f113ea1d61de3dc3a1523ba51089c1900e4
This commit is contained in:
drh
2021-11-08 23:24:00 +00:00
parent a32536b498
commit 90cf38be63
5 changed files with 105 additions and 67 deletions

View File

@@ -3964,8 +3964,8 @@ struct Walker {
int n; /* A counter */
int iCur; /* A cursor number */
SrcList *pSrcList; /* FROM clause */
struct SrcCount *pSrcCount; /* Counting column references */
struct CCurHint *pCCurHint; /* Used by codeCursorHint() */
struct RefSrcList *pRefSrcList; /* sqlite3ReferencesSrcList() */
int *aiCol; /* array of column indexes */
struct IdxCover *pIdxCover; /* Check for index coverage */
struct IdxExprTrans *pIdxTrans; /* Convert idxed expr to column */
@@ -4623,7 +4623,7 @@ void sqlite3AggInfoPersistWalkerInit(Walker*,Parse*);
void sqlite3ExprAnalyzeAggregates(NameContext*, Expr*);
void sqlite3ExprAnalyzeAggList(NameContext*,ExprList*);
int sqlite3ExprCoveredByIndex(Expr*, int iCur, Index *pIdx);
int sqlite3FunctionUsesThisSrc(Expr*, SrcList*);
int sqlite3ReferencesSrcList(Parse*, Expr*, SrcList*);
Vdbe *sqlite3GetVdbe(Parse*);
#ifndef SQLITE_UNTESTABLE
void sqlite3PrngSaveState(void);