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multi set 支持多set

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This commit is contained in:
suncan
2022-09-08 16:26:58 +08:00
parent fa7a5f026f
commit 4bd9f4345f
22 changed files with 818 additions and 436 deletions
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5
src/gausskernel/runtime/executor/execQual.cpp
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@ -73,6 +73,7 @@
#include "db4ai/gd.h"
#include "catalog/pg_proc_fn.h"
#include "access/tuptoaster.h"
#include "parser/parse_expr.h"
/* static function decls */
static bool isAssignmentIndirectionExpr(ExprState* exprstate);
@ -1072,6 +1073,9 @@ static Datum ExecEvalConst(ExprState* exprstate, ExprContext* econtext, bool* is
/* if not found, return a null const */
con = found ? entry->value : makeConst(UNKNOWNOID, -1, InvalidOid, -2, (Datum)0, true, false);
} else if (IsA(exprstate->expr, SetVariableExpr)) {
SetVariableExpr* setvar = (SetVariableExpr*)transformSetVariableExpr((SetVariableExpr*)exprstate->expr);
con = (Const*)setvar->value;
} else {
con = (Const*)exprstate->expr;
}
@ -5290,6 +5294,7 @@ ExprState* ExecInitExpr(Expr* node, PlanState* parent)
break;
case T_Const:
case T_UserVar:
case T_SetVariableExpr:
state = (ExprState*)makeNode(ExprState);
state->evalfunc = ExecEvalConst;
break;