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Support parameters in CALL

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To support parameters in CALL, move the parse analysis of the procedure
and arguments into the global transformation phase, so that the parser
hooks can be applied.  And then at execution time pass the parameters
from ProcessUtility on to ExecuteCallStmt.
This commit is contained in:
Peter Eisentraut
2018-02-20 18:03:31 -05:00
parent a6a80134e3
commit 76b6aa41f4
11 changed files with 124 additions and 24 deletions
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45
src/backend/parser/analyze.c
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@@ -36,6 +36,8 @@
#include "parser/parse_coerce.h"
#include "parser/parse_collate.h"
#include "parser/parse_cte.h"
#include "parser/parse_expr.h"
#include "parser/parse_func.h"
#include "parser/parse_oper.h"
#include "parser/parse_param.h"
#include "parser/parse_relation.h"
@@ -74,6 +76,8 @@ static Query *transformExplainStmt(ParseState *pstate,
ExplainStmt *stmt);
static Query *transformCreateTableAsStmt(ParseState *pstate,
CreateTableAsStmt *stmt);
static Query *transformCallStmt(ParseState *pstate,
CallStmt *stmt);
static void transformLockingClause(ParseState *pstate, Query *qry,
LockingClause *lc, bool pushedDown);
#ifdef RAW_EXPRESSION_COVERAGE_TEST
@@ -318,6 +322,10 @@ transformStmt(ParseState *pstate, Node *parseTree)
(CreateTableAsStmt *) parseTree);
break;
case T_CallStmt:
result = transformCallStmt(pstate,
(CallStmt *) parseTree);
default:
/*
@@ -2571,6 +2579,43 @@ transformCreateTableAsStmt(ParseState *pstate, CreateTableAsStmt *stmt)
return result;
}
/*
* transform a CallStmt
*
* We need to do parse analysis on the procedure call and its arguments.
*/
static Query *
transformCallStmt(ParseState *pstate, CallStmt *stmt)
{
List *targs;
ListCell *lc;
Node *node;
Query *result;
targs = NIL;
foreach(lc, stmt->funccall->args)
{
targs = lappend(targs, transformExpr(pstate,
(Node *) lfirst(lc),
EXPR_KIND_CALL_ARGUMENT));
}
node = ParseFuncOrColumn(pstate,
stmt->funccall->funcname,
targs,
pstate->p_last_srf,
stmt->funccall,
true,
stmt->funccall->location);
stmt->funcexpr = castNode(FuncExpr, node);
result = makeNode(Query);
result->commandType = CMD_UTILITY;
result->utilityStmt = (Node *) stmt;
return result;
}
/*
* Produce a string representation of a LockClauseStrength value.