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Remove comment claiming that PARAM_EXTERN Params always have typmod -1. 

This hasn't been true in quite some time, cf plpgsql's make_datum_param().
This commit is contained in:
Tom Lane 2015-03-05 13:16:27 -05:00
parent 934d122685
commit 3200b15b20
1 changed files with 3 additions and 8 deletions
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11
src/include/nodes/primnodes.h
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@ -179,9 +179,10 @@ typedef struct Const
int location; /* token location, or -1 if unknown */
} Const;
/* ----------------
/*
* Param
* paramkind - specifies the kind of parameter. The possible values
*
* paramkind specifies the kind of parameter. The possible values
* for this field are:
*
* PARAM_EXTERN: The parameter value is supplied from outside the plan.
@ -204,12 +205,6 @@ typedef struct Const
* of the `paramid' field contain the SubLink's subLinkId, and
* the low-order 16 bits contain the column number. (This type
* of Param is also converted to PARAM_EXEC during planning.)
*
* Note: currently, paramtypmod is always -1 for PARAM_EXTERN params, since
* the APIs that supply values for such parameters don't carry any typmod
* info. It is valid in other types of Params, if they represent expressions
* with determinable typmod.
* ----------------
*/
typedef enum ParamKind
{