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author | drh <drh@noemail.net> | 2020-12-09 20:30:47 +0000 |
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committer | drh <drh@noemail.net> | 2020-12-09 20:30:47 +0000 |
commit | e84ad92f17b96f1952f27645042bbf83fe6d0da5 (patch) | |
tree | 2fcba3afe39355cccb66226a626d5b5ab9e011a7 /src/sqliteInt.h | |
parent | 5602777e8fc872e638c0d9ccc116bebfd66e02e9 (diff) | |
download | sqlite-e84ad92f17b96f1952f27645042bbf83fe6d0da5.tar.gz sqlite-e84ad92f17b96f1952f27645042bbf83fe6d0da5.zip |
For upsert, the constraint check code generator uses a copy of the index list
for the target table, which can potentially be reordered.
FossilOrigin-Name: 3194c00c2c6a32bdfd5acc9fda5b38ae131d20cd3b7aea8512a41b2e76808f6a
Diffstat (limited to 'src/sqliteInt.h')
-rw-r--r-- | src/sqliteInt.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h index 06ddb3a61..8661f9058 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -3078,10 +3078,14 @@ struct Upsert { ExprList *pUpsertSet; /* The SET clause from an ON CONFLICT UPDATE */ Expr *pUpsertWhere; /* WHERE clause for the ON CONFLICT UPDATE */ Upsert *pNextUpsert; /* Next ON CONFLICT clause in the list */ - /* The fields above comprise the parse tree for the upsert clause. - ** The fields below are used to transfer information from the INSERT - ** processing down into the UPDATE processing while generating code. - ** Upsert owns the memory allocated above, but not the memory below. */ + /* Above this point is the parse tree for the ON CONFLICT clauses. + ** The next group of fields stores intermediate data. */ + Index *pIdxList; + /* All fields above are owned by the Upsert object and must be freed + ** when the Upsert is destroyed. The fields below are used to transfer + ** information from the INSERT processing down into the UPDATE processing + ** while generating code. The fields below are owned by the INSERT + ** statement and will be freed by INSERT processing. */ Index *pUpsertIdx; /* Constraint that pUpsertTarget identifies */ SrcList *pUpsertSrc; /* Table to be updated */ int regData; /* First register holding array of VALUES */ |