grammar cleanup'

bmomjian · bmomjian · commit 5dd9b58a86c7 · 1999-03-18T22:03:59.000Z
diff --git 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 2.64 1999/03/18 22:01:56 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.65 1999/03/18 22:03:59 momjian Exp $
  *
  * HISTORY
  *	  AUTHOR			DATE			MAJOR EVENT
@@ -5685,8 +5685,9 @@ Oid param_type(int t)
 }
 
 /*
- *	The optimizer doesn't like '-' 4, but wants an integer of -4, so we
- *  try to merge the minus into the constant.
+ *	The optimizer doesn't like '-' 4 for index use.  It only checks for
+ *	Var '=' Const.  It wants an integer of -4, so we try to merge the
+ *	minus into the constant.
  */
 static Node *doNegate(Node *n)
 {

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@`
`10`	`10`	`*`
`11`	`11`	`*`
`12`	`12`	`* IDENTIFICATION`
`13`		`- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.64 1999/03/18 22:01:56 momjian Exp $`
	`13`	`+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.65 1999/03/18 22:03:59 momjian Exp $`
`14`	`14`	`*`
`15`	`15`	`* HISTORY`
`16`	`16`	`* AUTHOR DATE MAJOR EVENT`
`@@ -5685,8 +5685,9 @@ Oid param_type(int t)`
`5685`	`5685`	`}`
`5686`	`5686`
`5687`	`5687`	`/*`
`5688`		`- * The optimizer doesn't like '-' 4, but wants an integer of -4, so we`
`5689`		`- * try to merge the minus into the constant.`
	`5688`	`+ * The optimizer doesn't like '-' 4 for index use. It only checks for`
	`5689`	`+ * Var '=' Const. It wants an integer of -4, so we try to merge the`
	`5690`	`+ * minus into the constant.`
`5690`	`5691`	`*/`
`5691`	`5692`	`static Node doNegate(Node n)`
`5692`	`5693`	`{`