From 40051ef71478cfb5fc8a86423df8d9cfcf364be7 Mon Sep 17 00:00:00 2001 From: Abhijit Menon-Sen Date: Wed, 30 Apr 2014 17:30:07 +0530 Subject: [PATCH 16/29] deparse: Support CREATE CONVERSION --- src/backend/tcop/deparse_utility.c | 37 ++++++++++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-) diff --git a/src/backend/tcop/deparse_utility.c b/src/backend/tcop/deparse_utility.c index 3a0616d..e28eb89 100644 --- a/src/backend/tcop/deparse_utility.c +++ b/src/backend/tcop/deparse_utility.c @@ -3493,6 +3493,41 @@ deparse_AlterEnumStmt(Oid objectId, Node *parsetree) } static ObjTree * +deparse_CreateConversion(Oid objectId, Node *parsetree) +{ + HeapTuple conTup; + Relation convrel; + Form_pg_conversion conForm; + ObjTree *ccStmt; + + convrel = heap_open(ConversionRelationId, AccessShareLock); + conTup = get_catalog_object_by_oid(convrel, objectId); + if (!HeapTupleIsValid(conTup)) + elog(ERROR, "cache lookup failed for conversion with OID %u", objectId); + conForm = (Form_pg_conversion) GETSTRUCT(conTup); + + ccStmt = new_objtree_VA("CREATE %{default}s CONVERSION %{identity}D FOR " + "%{source}L TO %{dest}L FROM %{function}D", 0); + + append_string_object(ccStmt, "default", + conForm->condefault ? "DEFAULT" : ""); + append_object_object(ccStmt, "identity", + new_objtree_for_qualname(conForm->connamespace, + NameStr(conForm->conname))); + append_string_object(ccStmt, "source", (char *) + pg_encoding_to_char(conForm->conforencoding)); + append_string_object(ccStmt, "dest", (char *) + pg_encoding_to_char(conForm->contoencoding)); + append_object_object(ccStmt, "function", + new_objtree_for_qualname_id(ProcedureRelationId, + conForm->conproc)); + + heap_close(convrel, AccessShareLock); + + return ccStmt; +} + +static ObjTree * deparse_CreateOpFamily(Oid objectId, Node *parsetree) { HeapTuple opfTup; @@ -4232,7 +4267,7 @@ deparse_simple_command(StashedCommand *cmd) break; case T_CreateConversionStmt: - elog(ERROR, "unimplemented deparse of %s", CreateCommandTag(parsetree)); + command = deparse_CreateConversion(objectId, parsetree); break; case T_CreateCastStmt: -- 2.1.4