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Disallow the one-pass optimization for DELETE if the WHERE clause contains

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a subquery.  Fix for the problem reported by
[forum:/forumpost/e61252062c9d286d|forum post e61252062c9d286d].  This fix
is more restrictive than necessary.  It could be relaxed if the subquery does
not involve the table that is the subject of the DELETE.

FossilOrigin-Name: 73f0036f045bf37193b6e87ae45b578c5831614c530488257c69666178da3aa5
This commit is contained in:
drh
2023-03-15 17:58:51 +00:00
parent eb5d71ed58
commit ffcad5893a
6 changed files with 35 additions and 14 deletions
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src/sqliteInt.h
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@@ -3343,7 +3343,7 @@ struct NameContext {
#define NC_HasAgg 0x000010 /* One or more aggregate functions seen */
#define NC_IdxExpr 0x000020 /* True if resolving columns of CREATE INDEX */
#define NC_SelfRef 0x00002e /* Combo: PartIdx, isCheck, GenCol, and IdxExpr */
#define NC_VarSelect 0x000040 /* A correlated subquery has been seen */
#define NC_Subquery 0x000040 /* A subquery has been seen */
#define NC_UEList 0x000080 /* True if uNC.pEList is used */
#define NC_UAggInfo 0x000100 /* True if uNC.pAggInfo is used */
#define NC_UUpsert 0x000200 /* True if uNC.pUpsert is used */