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Create new ParseExprKind for use by policy expressions.

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Policy USING and WITH CHECK expressions were using EXPR_KIND_WHERE for
parse analysis, which results in inappropriate ERROR messages when
the expression contains unsupported constructs such as aggregates.
Create a new ParseExprKind called EXPR_KIND_POLICY and tailor the
related messages to fit.

Reported by Noah Misch. Reviewed by Dean Rasheed, Alvaro Herrera,
and Robert Haas. Back-patch to 9.5 where RLS was introduced.
This commit is contained in:
Joe Conway
2015-07-29 15:37:48 -07:00
parent f04ce31475
commit 632cd9f892
7 changed files with 39 additions and 7 deletions
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4
src/test/modules/test_rls_hooks/test_rls_hooks.c
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@ -106,7 +106,7 @@ test_rls_hooks_permissive(CmdType cmdtype, Relation relation)
e = (Node *) makeSimpleA_Expr(AEXPR_OP, "=", (Node *) n, (Node *) c, 0);
policy->qual = (Expr *) transformWhereClause(qual_pstate, copyObject(e),
EXPR_KIND_WHERE,
EXPR_KIND_POLICY,
"POLICY");
policy->with_check_qual = copyObject(policy->qual);
@ -160,7 +160,7 @@ test_rls_hooks_restrictive(CmdType cmdtype, Relation relation)
e = (Node *) makeSimpleA_Expr(AEXPR_OP, "=", (Node *) n, (Node *) c, 0);
policy->qual = (Expr *) transformWhereClause(qual_pstate, copyObject(e),
EXPR_KIND_WHERE,
EXPR_KIND_POLICY,
"POLICY");
policy->with_check_qual = copyObject(policy->qual);