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434201d8d7
Note. all include files that have been hit so far have had extraneous
include files cleaned out and are reduced to...the lowest common
"include file", based on 'cc -Wall -I. test.c', where test.c is:
#include "postgres.h"
#include "<top of branches>" (ie. top of branches this time was utils/fcache2.h)
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*-------------------------------------------------------------------------
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*
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* params.h--
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* Declarations/definitions of stuff needed to handle parameterized plans.
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*
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: params.h,v 1.3 1996/11/04 08:52:57 scrappy Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARAMS_H
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#define PARAMS_H
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#include <access/attnum.h>
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/* ----------------------------------------------------------------
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*
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* The following are the possible values for the 'paramkind'
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* field of a Param node.
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*
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* PARAM_NAMED: The parameter has a name, i.e. something
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* like `$.salary' or `$.foobar'.
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* In this case field `paramname' must be a valid Name.
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* and field `paramid' must be == 0.
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*
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* PARAM_NUM: The parameter has only a numeric identifier,
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* i.e. something like `$1', `$2' etc.
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* The number is contained in the `parmid' field.
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*
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* PARAM_NEW: Used in PRS2 rule, similar to PARAM_NAMED.
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* The `paramname' & `paramid' refer to the "NEW" tuple
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* `paramname' is the attribute name and `paramid' its
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* attribute number.
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*
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* PARAM_OLD: Same as PARAM_NEW, but in this case we refer to
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* the "OLD" tuple.
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*/
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#define PARAM_NAMED 11
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#define PARAM_NUM 12
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#define PARAM_NEW 13
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#define PARAM_OLD 14
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#define PARAM_INVALID 100
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/* ----------------------------------------------------------------
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* ParamListInfo
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*
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* Information needed in order for the executor to handle
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* parameterized plans (you know, $.salary, $.name etc. stuff...).
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*
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* ParamListInfoData contains information needed when substituting a
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* Param node with a Const node.
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*
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* kind : the kind of parameter.
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* name : the parameter name (valid if kind == PARAM_NAMED,
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* PARAM_NEW or PARAM_OLD)
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* id : the parameter id (valid if kind == PARAM_NUM)
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* or the attrno (if kind == PARAM_NEW or PARAM_OLD)
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* type : PG_TYPE OID of the value
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* length : length in bytes of the value
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* isnull : true if & only if the value is null (if true then
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* the fields 'length' and 'value' are undefined).
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* value : the value that has to be substituted in the place
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* of the parameter.
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*
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* ParamListInfo is to be used as an array of ParamListInfoData
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* records. An 'InvalidName' in the name field of such a record
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* indicates that this is the last record in the array.
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*
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* ----------------------------------------------------------------
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*/
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typedef struct ParamListInfoData {
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int kind;
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char *name;
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AttrNumber id;
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Oid type;
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Size length;
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bool isnull;
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bool byval;
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Datum value;
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} ParamListInfoData;
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typedef ParamListInfoData *ParamListInfo;
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#endif /* PARAMS_H */
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