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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/backend/tcop/utility.c
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@@ -661,7 +661,8 @@ standard_ProcessUtility(PlannedStmt *pstmt,
case T_CallStmt:
ExecuteCallStmt(castNode(CallStmt, parsetree), params,
(context != PROCESS_UTILITY_TOPLEVEL || IsTransactionBlock()));
(context != PROCESS_UTILITY_TOPLEVEL || IsTransactionBlock()),
dest);
break;
case T_ClusterStmt: