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Support INOUT arguments in procedures

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In a top-level CALL, the values of INOUT arguments will be returned as a
result row.  In PL/pgSQL, the values are assigned back to the input
arguments.  In other languages, the same convention as for return a
record from a function is used.  That does not require any code changes
in the PL implementations.

Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
This commit is contained in:
Peter Eisentraut
2018-03-14 11:47:21 -04:00
parent 484a4a08ab
commit 33803f67f1
32 changed files with 792 additions and 50 deletions
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3
src/include/commands/defrem.h
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@@ -17,6 +17,7 @@
#include "catalog/objectaddress.h"
#include "nodes/params.h"
#include "nodes/parsenodes.h"
#include "tcop/dest.h"
#include "utils/array.h"
/* commands/dropcmds.c */
@@ -62,7 +63,7 @@ extern void DropTransformById(Oid transformOid);
extern void IsThereFunctionInNamespace(const char *proname, int pronargs,
oidvector *proargtypes, Oid nspOid);
extern void ExecuteDoStmt(DoStmt *stmt, bool atomic);
extern void ExecuteCallStmt(CallStmt *stmt, ParamListInfo params, bool atomic);
extern void ExecuteCallStmt(CallStmt *stmt, ParamListInfo params, bool atomic, DestReceiver *dest);
extern Oid get_cast_oid(Oid sourcetypeid, Oid targettypeid, bool missing_ok);
extern Oid get_transform_oid(Oid type_id, Oid lang_id, bool missing_ok);
extern void interpret_function_parameter_list(ParseState *pstate,