diff options
Diffstat (limited to 'src/backend/utils/adt/ruleutils.c')
| -rw-r--r-- | src/backend/utils/adt/ruleutils.c | 38 |
1 files changed, 33 insertions, 5 deletions
diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c index 9cb90444a87..95e457c261f 100644 --- a/src/backend/utils/adt/ruleutils.c +++ b/src/backend/utils/adt/ruleutils.c @@ -3,7 +3,7 @@ * back to source text * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.165 2004/05/07 03:19:44 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.166 2004/05/10 22:44:46 tgl Exp $ * * This software is copyrighted by Jan Wieck - Hamburg. * @@ -2432,6 +2432,7 @@ isSimpleNode(Node *node, Node *parentNode, int prettyFlags) case T_ArrayRef: case T_ArrayExpr: + case T_RowExpr: case T_CoalesceExpr: case T_NullIfExpr: case T_Aggref: @@ -2528,6 +2529,7 @@ isSimpleNode(Node *node, Node *parentNode, int prettyFlags) case T_BoolExpr: /* lower precedence */ case T_ArrayRef: /* other separators */ case T_ArrayExpr: /* other separators */ + case T_RowExpr: /* other separators */ case T_CoalesceExpr: /* own parentheses */ case T_NullIfExpr: /* other separators */ case T_Aggref: /* own parentheses */ @@ -2574,6 +2576,7 @@ isSimpleNode(Node *node, Node *parentNode, int prettyFlags) } case T_ArrayRef: /* other separators */ case T_ArrayExpr: /* other separators */ + case T_RowExpr: /* other separators */ case T_CoalesceExpr: /* own parentheses */ case T_NullIfExpr: /* other separators */ case T_Aggref: /* own parentheses */ @@ -2942,11 +2945,9 @@ get_rule_expr(Node *node, deparse_context *context, * arg.fieldname, but most cases where FieldSelect is used * are *not* simple. So, always use parenthesized syntax. */ - if (!PRETTY_PAREN(context)) - appendStringInfoChar(buf, '('); + appendStringInfoChar(buf, '('); get_rule_expr_paren((Node *) fselect->arg, context, true, node); - if (!PRETTY_PAREN(context)) - appendStringInfoChar(buf, ')'); + appendStringInfoChar(buf, ')'); appendStringInfo(buf, ".%s", quote_identifier(fieldname)); } break; @@ -3051,6 +3052,33 @@ get_rule_expr(Node *node, deparse_context *context, } break; + case T_RowExpr: + { + RowExpr *rowexpr = (RowExpr *) node; + List *arg; + char *sep; + + /* + * SQL99 allows "ROW" to be omitted when length(args) > 1, + * but for simplicity we always print it. + */ + appendStringInfo(buf, "ROW("); + sep = ""; + foreach(arg, rowexpr->args) + { + Node *e = (Node *) lfirst(arg); + + appendStringInfo(buf, sep); + get_rule_expr(e, context, true); + sep = ", "; + } + appendStringInfo(buf, ")"); + if (rowexpr->row_format == COERCE_EXPLICIT_CAST) + appendStringInfo(buf, "::%s", + format_type_with_typemod(rowexpr->row_typeid, -1)); + } + break; + case T_CoalesceExpr: { CoalesceExpr *coalesceexpr = (CoalesceExpr *) node; |