fix multi cluster tests

Author: fang-xing-esql

x-pack/plugin/esql/qa/testFixtures/src/main/resources/union_types.csv-spec

@@ -2065,8 +2065,8 @@ FROM date_nanos, date_nanos_union_types
 | LIMIT 4
 ;
 
-warning:Line 1:1: evaluation of [FROM date_nanos, date_nanos_union_types] failed, treating result as null. Only first 20 failures recorded.
-warning:Line 1:1: java.lang.IllegalArgumentException: milliSeconds [-1457696696640] are before the epoch in 1970 and cannot be converted to nanoseconds
+warningRegex:evaluation of \[FROM .*date_nanos.*date_nanos_union_types.*\] failed, treating result as null. Only first 20 failures recorded.
+warningRegex:java.lang.IllegalArgumentException: milliSeconds \[-1457696696640\] are before the epoch in 1970 and cannot be converted to nanoseconds
 
 millis:date_nanos              | nanos:date_nanos               | num:long
 1999-10-23T12:15:03.360103847Z | 2023-01-23T13:55:01.543Z       | 0
@@ -2085,8 +2085,8 @@ FROM date_nanos, date_nanos_union_types
 | LIMIT 4
 ;
 
-warning:Line 1:1: evaluation of [FROM date_nanos, date_nanos_union_types] failed, treating result as null. Only first 20 failures recorded.
-warning:Line 1:1: java.lang.IllegalArgumentException: milliSeconds [-1457696696640] are before the epoch in 1970 and cannot be converted to nanoseconds
+warningRegex:evaluation of \[FROM .*date_nanos.*date_nanos_union_types.*\] failed, treating result as null. Only first 20 failures recorded.
+warningRegex:java.lang.IllegalArgumentException: milliSeconds \[-1457696696640\] are before the epoch in 1970 and cannot be converted to nanoseconds
 millis:date_nanos              | num:long | nanos:date_nanos
 1999-10-22T12:15:03.360103847Z | 0        | 2023-03-23T12:15:03.360Z
 1999-10-23T12:15:03.360103847Z | 0        | 2023-03-23T12:15:03.360Z
@@ -2104,8 +2104,8 @@ FROM date_nanos, date_nanos_union_types
 | SORT millis
 ;
 
-warning:Line 1:1: evaluation of [FROM date_nanos, date_nanos_union_types] failed, treating result as null. Only first 20 failures recorded.
-warning:Line 1:1: java.lang.IllegalArgumentException: milliSeconds [-1457696696640] are before the epoch in 1970 and cannot be converted to nanoseconds
+warningRegex:evaluation of \[FROM .*date_nanos.*date_nanos_union_types.*\] failed, treating result as null. Only first 20 failures recorded.
+warningRegex:java.lang.IllegalArgumentException: milliSeconds \[-1457696696640\] are before the epoch in 1970 and cannot be converted to nanoseconds
 millis:date_nanos              | nanos:date_nanos               | num:long
 2023-10-23T12:15:03.360Z       | 2023-10-23T12:15:03.360103847Z | 1698063303360103847
 2023-10-23T12:15:03.360Z       | 2023-10-23T12:15:03.360103847Z | 1698063303360103847
@@ -2123,8 +2123,8 @@ FROM date_nanos, date_nanos_union_types
 | STATS max = MAX(millis), min = MIN(nanos)
 ;
 
-warning:Line 1:1: evaluation of [FROM date_nanos, date_nanos_union_types] failed, treating result as null. Only first 20 failures recorded.
-warning:Line 1:1: java.lang.IllegalArgumentException: milliSeconds [-1457696696640] are before the epoch in 1970 and cannot be converted to nanoseconds
+warningRegex:evaluation of \[FROM .*date_nanos.*date_nanos_union_types.*\] failed, treating result as null. Only first 20 failures recorded.
+warningRegex:java.lang.IllegalArgumentException: milliSeconds \[-1457696696640\] are before the epoch in 1970 and cannot be converted to nanoseconds
 
 max:date_nanos                 | min:date_nanos
 2023-10-23T13:55:01.543123456Z | 2023-01-23T13:55:01.543Z
@@ -2138,8 +2138,8 @@ FROM date_nanos, date_nanos_union_types
 | STATS c = MV_COUNT(VALUES(nanos))
 ;
 
-warning:Line 1:1: evaluation of [FROM date_nanos, date_nanos_union_types] failed, treating result as null. Only first 20 failures recorded.
-warning:Line 1:1: java.lang.IllegalArgumentException: milliSeconds [-1457696696640] are before the epoch in 1970 and cannot be converted to nanoseconds
+warningRegex:evaluation of \[FROM .*date_nanos.*date_nanos_union_types.*\] failed, treating result as null. Only first 20 failures recorded.
+warningRegex:java.lang.IllegalArgumentException: milliSeconds \[-1457696696640\] are before the epoch in 1970 and cannot be converted to nanoseconds
 
 c:integer
 19