From 07cff36eb78b2161c209336bc0167ed9b6069585 Mon Sep 17 00:00:00 2001 From: Alvaro Herrera Date: Fri, 21 Mar 2014 16:33:14 -0300 Subject: [PATCH 09/29] deparse: Support ALTER TYPE / ADD VALUE (enums) --- src/backend/tcop/deparse_utility.c | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) diff --git a/src/backend/tcop/deparse_utility.c b/src/backend/tcop/deparse_utility.c index d3dfba6..a586e55 100644 --- a/src/backend/tcop/deparse_utility.c +++ b/src/backend/tcop/deparse_utility.c @@ -2283,6 +2283,39 @@ deparse_CreateSchemaStmt(Oid objectId, Node *parsetree) return createSchema; } +static ObjTree * +deparse_AlterEnumStmt(Oid objectId, Node *parsetree) +{ + AlterEnumStmt *node = (AlterEnumStmt *) parsetree; + ObjTree *alterEnum; + ObjTree *tmp; + + alterEnum = + new_objtree_VA("ALTER TYPE %{identity}D ADD VALUE %{if_not_exists}s %{value}L %{position}s", + 0); + + append_string_object(alterEnum, "if_not_exists", + node->skipIfExists ? "IF NOT EXISTS" : ""); + append_object_object(alterEnum, "identity", + new_objtree_for_qualname_id(TypeRelationId, + objectId)); + append_string_object(alterEnum, "value", node->newVal); + tmp = new_objtree_VA("%{after_or_before}s %{neighbour}L", 0); + if (node->newValNeighbor) + { + append_string_object(tmp, "after_or_before", + node->newValIsAfter ? "AFTER" : "BEFORE"); + append_string_object(tmp, "neighbour", node->newValNeighbor); + } + else + { + append_bool_object(tmp, "present", false); + } + append_object_object(alterEnum, "position", tmp); + + return alterEnum; +} + /* * Handle deparsing of simple commands. * @@ -2395,7 +2428,7 @@ deparse_simple_command(StashedCommand *cmd) break; case T_AlterEnumStmt: - elog(ERROR, "unimplemented deparse of %s", CreateCommandTag(parsetree)); + command = deparse_AlterEnumStmt(objectId, parsetree); break; case T_ViewStmt: /* CREATE VIEW */ -- 2.1.4