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Update dummy CREATE ASSERTION grammar

While we are probably still far away from fully implementingassertions, all patch proposals appear to take issue with the existingdummy grammar CREATE/DROP ASSERTION productions, so update those alittle bit. Rename the rule, use any_name instead of name, and removesome 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

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src/backend/parser
- gram.y

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`‎src/backend/parser/gram.y`

Lines changed: 7 additions & 32 deletions

Original file line number	Diff line number	Diff line change
`@@ -259,11 +259,11 @@ static Node makeRecursiveViewSelect(char relname, List aliases, Node query);`
`259`	`259`	`CreateOpFamilyStmtAlterOpFamilyStmtCreatePLangStmt`
`260`	`260`	`CreateSchemaStmtCreateSeqStmtCreateStmtCreateStatsStmtCreateTableSpaceStmt`
`261`	`261`	`CreateFdwStmtCreateForeignServerStmtCreateForeignTableStmt`
`262`		`-CreateAssertStmtCreateTransformStmtCreateTrigStmtCreateEventTrigStmt`
	`262`	`+CreateAssertionStmtCreateTransformStmtCreateTrigStmtCreateEventTrigStmt`
`263`	`263`	`CreateUserStmtCreateUserMappingStmtCreateRoleStmtCreatePolicyStmt`
`264`	`264`	`CreatedbStmtDeclareCursorStmtDefineStmtDeleteStmtDiscardStmtDoStmt`
`265`	`265`	`DropOpClassStmtDropOpFamilyStmtDropPLangStmtDropStmt`
`266`		`-DropAssertStmtDropCastStmtDropRoleStmt`
	`266`	`+DropCastStmtDropRoleStmt`
`267`	`267`	`DropdbStmtDropTableSpaceStmt`
`268`	`268`	`DropTransformStmt`
`269`	`269`	`DropUserMappingStmtExplainStmtFetchStmt`
`@@ -860,7 +860,7 @@ stmt :`
`860`	`860`	`\|CopyStmt`
`861`	`861`	`\|CreateAmStmt`
`862`	`862`	`\|CreateAsStmt`
`863`		`-\|CreateAssertStmt`
	`863`	`+\|CreateAssertionStmt`
`864`	`864`	`\|CreateCastStmt`
`865`	`865`	`\|CreateConversionStmt`
`866`	`866`	`\|CreateDomainStmt`
`@@ -896,7 +896,6 @@ stmt :`
`896`	`896`	`\|DeleteStmt`
`897`	`897`	`\|DiscardStmt`
`898`	`898`	`\|DoStmt`
`899`		`-\|DropAssertStmt`
`900`	`899`	`\|DropCastStmt`
`901`	`900`	`\|DropOpClassStmt`
`902`	`901`	`\|DropOpFamilyStmt`
`@@ -5639,43 +5638,19 @@ enable_trigger:`
`5639`	`5638`
`5640`	`5639`	`/*****************************************************************************`
`5641`	`5640`	`*`
`5642`		`- *QUERIES :`
	`5641`	`+ *QUERY :`
`5643`	`5642`	`*CREATE ASSERTION ...`
`5644`		`- *DROP ASSERTION ...`
`5645`	`5643`	`*`
`5646`	`5644`	`*****************************************************************************/`
`5647`	`5645`
`5648`		`-CreateAssertStmt:`
`5649`		`-CREATEASSERTIONnameCHECK'('a_expr')'`
`5650`		`-ConstraintAttributeSpec`
	`5646`	`+CreateAssertionStmt:`
	`5647`	`+CREATEASSERTIONany_nameCHECK'('a_expr')'ConstraintAttributeSpec`
`5651`	`5648`	`{`
`5652`		`-CreateTrigStmt *n = makeNode(CreateTrigStmt);`
`5653`		`-n->trigname =$3;`
`5654`		`-n->args = list_make1($6);`
`5655`		`-n->isconstraint =true;`
`5656`		`-processCASbits($8, @8,"ASSERTION",`
`5657`		`- &n->deferrable, &n->initdeferred,NULL,`
`5658`		`-NULL, yyscanner);`
`5659`		`-`
`5660`	`5649`	`ereport(ERROR,`
`5661`	`5650`	`(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),`
`5662`	`5651`	`errmsg("CREATE ASSERTION is not yet implemented")));`
`5663`	`5652`
`5664`		`-$$ = (Node *)n;`
`5665`		`-}`
`5666`		`-;`
`5667`		`-`
`5668`		`-DropAssertStmt:`
`5669`		`-DROPASSERTIONnameopt_drop_behavior`
`5670`		`-{`
`5671`		`-DropStmt *n = makeNode(DropStmt);`
`5672`		`-n->objects = NIL;`
`5673`		`-n->behavior =$4;`
`5674`		`-n->removeType = OBJECT_TRIGGER;/* XXX*/`
`5675`		`-ereport(ERROR,`
`5676`		`-(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),`
`5677`		`- errmsg("DROP ASSERTION is not yet implemented")));`
`5678`		`-$$ = (Node *) n;`
	`5653`	`+$$ =NULL;`
`5679`	`5654`	`}`
`5680`	`5655`	`;`
`5681`	`5656`

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`‎src/backend/parser/gram.y`

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