From 00c85b44b86518df6cb84f25f8ee42e5395634df Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Tue, 5 Oct 1999 18:14:31 +0000
Subject: [PATCH] Allow comment-only lines, and ;;; lines too.
---
src/backend/parser/gram.y | 27 +++++++++++++++++++--------
1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 87c82839df4..006e545c3af 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.106 1999/10/03 23:55:30 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.107 1999/10/05 18:14:31 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -365,20 +365,29 @@ Oid param_type(int t); /* used in parse_expr.c */
%left UNION INTERSECT EXCEPT
%%
-stmtblock: stmtmulti opt_semi
+/*
+ * Handle comment-only lines, and ;; SELECT * FROM pg_class ;;;
+ * psql already handles such cases, but other interfaces don't.
+ * bjm 1999/10/05
+ */
+stmtblock: stmtmulti
{ parsetree = $1; }
;
stmtmulti: stmtmulti ';' stmt
- { $$ = lappend($1, $3); }
+ { if ($3 != (Node *)NIL)
+ $$ = lappend($1, $3);
+ else
+ $$ = $1;
+ }
| stmt
- { $$ = lcons($1,NIL); }
+ { if ($1 != (Node *)NIL)
+ $$ = lcons($1,NIL);
+ else
+ $$ = (Node *)NIL;
+ }
;
-opt_semi: ';'
- | /*EMPTY*/
- ;
-
stmt : AddAttrStmt
| AlterUserStmt
| ClosePortalStmt
@@ -423,6 +432,8 @@ stmt : AddAttrStmt
| VariableShowStmt
| VariableResetStmt
| ConstraintsSetStmt
+ | /*EMPTY*/
+ { $$ = (Node *)NIL; }
;
/*****************************************************************************
--
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