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Improve obsolete comment.

This commit is contained in:
Tom Lane 2002-08-19 00:10:03 +00:00
parent 0556e9cfae
commit 6fb05e06a3
1 changed files with 9 additions and 5 deletions
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14
src/include/nodes/pg_list.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $Id: pg_list.h,v 1.28 2002/06/20 20:29:51 momjian Exp $ * $Id: pg_list.h,v 1.29 2002/08/19 00:10:03 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -24,10 +24,12 @@
/*---------------------- /*----------------------
* Value node * Value node
* *
* The same Value struct is used for three node types: T_Integer, * The same Value struct is used for five node types: T_Integer,
* T_Float, and T_String. Integral values are actually represented * T_Float, T_String, T_BitString, T_Null.
* by a machine integer, but both floats and strings are represented *
* as strings. Using T_Float as the node type simply indicates that * Integral values are actually represented by a machine integer,
* but both floats and strings are represented as strings.
* Using T_Float as the node type simply indicates that
* the contents of the string look like a valid numeric literal. * the contents of the string look like a valid numeric literal.
* *
* (Before Postgres 7.0, we used a double to represent T_Float, * (Before Postgres 7.0, we used a double to represent T_Float,
@ -38,6 +40,8 @@
* *
* Note that an integer-looking string will get lexed as T_Float if * Note that an integer-looking string will get lexed as T_Float if
* the value is too large to fit in a 'long'. * the value is too large to fit in a 'long'.
*
* Nulls, of course, don't need the value part at all.
*---------------------- *----------------------
*/ */
typedef struct Value typedef struct Value