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Update dummy CREATE ASSERTION grammar 

While we are probably still far away from fully implementing
assertions, all patch proposals appear to take issue with the existing
dummy grammar CREATE/DROP ASSERTION productions, so update those a
little bit.  Rename the rule, use any_name instead of name, and remove
some unused code.  Also remove the production for DROP ASSERTION,
since that would most likely be handled via the generic DROP support.

extracted from a patch by Joe Wildish
This commit is contained in:
Peter Eisentraut 2018-09-26 13:26:24 +02:00
parent a3d2844852
commit a49ceda6a0
1 changed files with 7 additions and 32 deletions
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39
src/backend/parser/gram.y
View File

@ -259,11 +259,11 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
CreateOpFamilyStmt AlterOpFamilyStmt CreatePLangStmt
CreateSchemaStmt CreateSeqStmt CreateStmt CreateStatsStmt CreateTableSpaceStmt
CreateFdwStmt CreateForeignServerStmt CreateForeignTableStmt
CreateAssertStmt CreateTransformStmt CreateTrigStmt CreateEventTrigStmt
CreateAssertionStmt CreateTransformStmt CreateTrigStmt CreateEventTrigStmt
CreateUserStmt CreateUserMappingStmt CreateRoleStmt CreatePolicyStmt
CreatedbStmt DeclareCursorStmt DefineStmt DeleteStmt DiscardStmt DoStmt
DropOpClassStmt DropOpFamilyStmt DropPLangStmt DropStmt
DropAssertStmt DropCastStmt DropRoleStmt
DropCastStmt DropRoleStmt
DropdbStmt DropTableSpaceStmt
DropTransformStmt
DropUserMappingStmt ExplainStmt FetchStmt
@ -860,7 +860,7 @@ stmt :
| CopyStmt
| CreateAmStmt
| CreateAsStmt
| CreateAssertStmt
| CreateAssertionStmt
| CreateCastStmt
| CreateConversionStmt
| CreateDomainStmt
@ -896,7 +896,6 @@ stmt :
| DeleteStmt
| DiscardStmt
| DoStmt
| DropAssertStmt
| DropCastStmt
| DropOpClassStmt
| DropOpFamilyStmt
@ -5639,43 +5638,19 @@ enable_trigger:
/*****************************************************************************
*
* QUERIES :
* QUERY :
* CREATE ASSERTION ...
* DROP ASSERTION ...
*
*****************************************************************************/
CreateAssertStmt:
CREATE ASSERTION name CHECK '(' a_expr ')'
ConstraintAttributeSpec
CreateAssertionStmt:
CREATE ASSERTION any_name CHECK '(' a_expr ')' ConstraintAttributeSpec
{
CreateTrigStmt *n = makeNode(CreateTrigStmt);
n->trigname = $3;
n->args = list_make1($6);
n->isconstraint = true;
processCASbits($8, @8, "ASSERTION",
&n->deferrable, &n->initdeferred, NULL,
NULL, yyscanner);
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("CREATE ASSERTION is not yet implemented")));
$$ = (Node *)n;
}
;
DropAssertStmt:
DROP ASSERTION name opt_drop_behavior
{
DropStmt *n = makeNode(DropStmt);
n->objects = NIL;
n->behavior = $4;
n->removeType = OBJECT_TRIGGER; /* XXX */
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("DROP ASSERTION is not yet implemented")));
$$ = (Node *) n;
$$ = NULL;
}
;