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NOT NULL implementation (submitted by Robson Paniago de Miranda).

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This commit is contained in:
Vadim B. Mikheev
1997-08-19 04:46:15 +00:00
parent b99c63cfc0
commit b992e200b8
16 changed files with 453 additions and 337 deletions
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10
src/include/access/tupdesc.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: tupdesc.h,v 1.5 1996/11/04 07:45:28 scrappy Exp $
* $Id: tupdesc.h,v 1.6 1997/08/19 04:45:20 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -17,6 +17,13 @@
#include <access/attnum.h>
#include <catalog/pg_attribute.h>
typedef struct attrConstr {
/*------------------------------------------------------------------------
This structure contains flags to the constraints of a tuple
------------------------------------------------------------------------*/
bool has_not_null;
} AttrConstr;
typedef struct tupleDesc {
/*------------------------------------------------------------------------
This structure contains all the attribute information (i.e. from Class
@@ -26,6 +33,7 @@ typedef struct tupleDesc {
/* Number of attributes in the tuple */
AttributeTupleForm *attrs;
/* attrs[N] is a pointer to the description of Attribute Number N+1. */
AttrConstr *constr;
} *TupleDesc;
extern TupleDesc CreateTemplateTupleDesc(int natts);