From: Abhijit Menon-Sen <ams@2ndQuadrant.com>
Date: Wed, 30 Apr 2014 12:00:07 +0000 (+0530)
Subject: deparse: Support CREATE CONVERSION
X-Git-Url: http://git.postgresql.org/gitweb/static/%7B%7Bpguslink%28?a=commitdiff_plain;h=28e1746e94e55544e711386b29212a7c7ff2dd7b;p=2ndquadrant_bdr.git

deparse: Support CREATE CONVERSION
---

diff --git a/src/backend/tcop/deparse_utility.c b/src/backend/tcop/deparse_utility.c
index 07daf08dfc..3439d15f99 100644
--- a/src/backend/tcop/deparse_utility.c
+++ b/src/backend/tcop/deparse_utility.c
@@ -3534,6 +3534,41 @@ deparse_AlterEnumStmt(Oid objectId, Node *parsetree)
 	return alterEnum;
 }
 
+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)
 {
@@ -4292,7 +4327,7 @@ 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: