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| author | Peter Eisentraut <peter@eisentraut.org> | 2025-01-11 10:45:17 +0100 |
|---|---|---|
| committer | Peter Eisentraut <peter@eisentraut.org> | 2025-01-11 10:52:30 +0100 |
| commit | ca87c415e2fccf81cec6fd45698dde9fae0ab570 (patch) | |
| tree | f9e1f5fc7637f0baf91566f4d8a333ddb60960b1 /src/backend/executor/execMain.c | |
| parent | 72ceb21b029433dd82f29182894dce63e639b4d4 (diff) | |
| download | postgresql-ca87c415e2fccf81cec6fd45698dde9fae0ab570.tar.gz postgresql-ca87c415e2fccf81cec6fd45698dde9fae0ab570.zip | |
Add support for NOT ENFORCED in CHECK constraints
This adds support for the NOT ENFORCED/ENFORCED flag for constraints,
with support for check constraints.
The plan is to eventually support this for foreign key constraints,
where it is typically more useful.
Note that CHECK constraints do not currently support ALTER operations,
so changing the enforceability of an existing constraint isn't
possible without dropping and recreating it. This could be added
later.
Author: Amul Sul <amul.sul@enterprisedb.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Reviewed-by: jian he <jian.universality@gmail.com>
Tested-by: Triveni N <triveni.n@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/CAAJ_b962c5AcYW9KUt_R_ER5qs3fUGbe4az-SP-vuwPS-w-AGA@mail.gmail.com
Diffstat (limited to 'src/backend/executor/execMain.c')
| -rw-r--r-- | src/backend/executor/execMain.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/backend/executor/execMain.c b/src/backend/executor/execMain.c index a06295b6ba7..2d28ec65fc4 100644 --- a/src/backend/executor/execMain.c +++ b/src/backend/executor/execMain.c @@ -1751,11 +1751,15 @@ ExecRelCheck(ResultRelInfo *resultRelInfo, { oldContext = MemoryContextSwitchTo(estate->es_query_cxt); resultRelInfo->ri_ConstraintExprs = - (ExprState **) palloc(ncheck * sizeof(ExprState *)); + (ExprState **) palloc0(ncheck * sizeof(ExprState *)); for (i = 0; i < ncheck; i++) { Expr *checkconstr; + /* Skip not enforced constraint */ + if (!check[i].ccenforced) + continue; + checkconstr = stringToNode(check[i].ccbin); resultRelInfo->ri_ConstraintExprs[i] = ExecPrepareExpr(checkconstr, estate); @@ -1782,7 +1786,7 @@ ExecRelCheck(ResultRelInfo *resultRelInfo, * is not to be treated as a failure. Therefore, use ExecCheck not * ExecQual. */ - if (!ExecCheck(checkconstr, econtext)) + if (checkconstr && !ExecCheck(checkconstr, econtext)) return check[i].ccname; } |