Fix show error core and update user core.

src/common/backend/parser/analyze.cpp

@@ -3928,7 +3928,7 @@ static Query* transformUpdateStmt(ParseState* pstate, UpdateStmt* stmt)
     }
 
     /* non-supported IGNORE cases */
-    Relation rel = ((Relation)linitial(pstate->p_target_relation));
+    Relation rel = ((Relation)linitial2(pstate->p_target_relation));
     if (pstate->p_has_ignore && rel != NULL) {
         if (RelationIsColumnFormat(rel)) {
             ereport(ERROR, ((errcode(ERRCODE_FEATURE_NOT_SUPPORTED),

src/common/backend/utils/error/elog.cpp

@@ -5369,14 +5369,13 @@ void gramShowWarningsErrors(int offset, int count, DestReceiver *dest, bool isSh
         Assert(lc != NULL);
         DolphinErrorData *eData = (DolphinErrorData *)lfirst(lc);
         values[1] = Int32GetDatum(eData->errorcode);
-        if (eData->message) {
-            values[2] = CStringGetTextDatum(eData->message);
-        } else {
-            values[2] = CStringGetTextDatum("");
-        }
+
         if (isShowErrors) {
             if (eData->elevel == enum_dolphin_error_level::B_ERROR) {
                 values[0] = CStringGetTextDatum("Error");
+            } else {
+                currIdx++;
+                continue;
             }
         } else {
             switch (eData->elevel) {
@@ -5392,6 +5391,12 @@ void gramShowWarningsErrors(int offset, int count, DestReceiver *dest, bool isSh
                     break;
             }
         }
+
+        if (eData->message) {
+            values[2] = CStringGetTextDatum(eData->message);
+        } else {
+            values[2] = CStringGetTextDatum("");
+        }
         limit--;
         currIdx++;
         do_tup_output(tstate, values, NUM_SHOW_WARNINGS_COLUMNS, nulls, NUM_SHOW_WARNINGS_COLUMNS);

src/test/regress/expected/show_warnings.out

@@ -69,6 +69,46 @@ show warnings;
  Note  |    0 | TEST CHAR VALUE IS abc
 (1 row)
 
+drop table if exists t_showtest;
+NOTICE:  table "t_showtest" does not exist, skipping
+create table t_showtest(a int, primary key(a));
+NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "t_showtest_pkey" for table "t_showtest"
+show errors;
+ level | code | message 
+-------+------+---------
+(0 rows)
+
+show errors limit 10;
+ level | code | message 
+-------+------+---------
+(0 rows)
+
+drop table if exists t_showtest;
+create table t_showtest(a int, primary key(a));
+NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "t_showtest_pkey" for table "t_showtest"
+show warnings;
+ level | code |                                            message                                             
+-------+------+------------------------------------------------------------------------------------------------
+ Note  |    0 | CREATE TABLE / PRIMARY KEY will create implicit index "t_showtest_pkey" for table "t_showtest"
+(1 row)
+
+drop table if exists t_showtest;
+update user set b = 'x' where a = 1;
+ERROR:  column "a" does not exist
+LINE 1: update user set b = 'x' where a = 1;
+                                      ^
+show warnings;
+ level |   code   |          message          
+-------+----------+---------------------------
+ Error | 50360452 | column "a" does not exist
+(1 row)
+
+show errors;
+ level |   code   |          message          
+-------+----------+---------------------------
+ Error | 50360452 | column "a" does not exist
+(1 row)
+
 set sql_note=false;
 select TEST_FUNC('abc'::clob);
 INFO:  TEST CHAR VALUE IS abc

src/test/regress/sql/show_warnings.sql

@@ -22,6 +22,21 @@ $$ LANGUAGE plpgsql;
 select TEST_FUNC('abc'::clob);
 
 show warnings;
+
+drop table if exists t_showtest;
+create table t_showtest(a int, primary key(a));
+show errors;
+show errors limit 10;
+
+drop table if exists t_showtest;
+create table t_showtest(a int, primary key(a));
+show warnings;
+drop table if exists t_showtest;
+
+update user set b = 'x' where a = 1;
+show warnings;
+show errors;
+
 set sql_note=false;
 select TEST_FUNC('abc'::clob);
 show warnings;