Rewrite Geometry to Varchar type for verifier temp tables (prestodb#26140)

Summary: For queries being tested with verifier, if the output type is
Geometry, the test case will be skipped due to a "NOT_SUPPORTED Type
'Geometry' cannot be written to a Hive table. Cast to a supported type
such as VARCHAR or VARBINARY." error for both the control and test
queries. This change rewrites the column type from Geometry to Varchar
using the ST_AsText function, which is deterministic.

Differential Revision: D83139143

```
== NO RELEASE NOTE ==
```

Author: HeidiHan0000

presto-verifier/src/main/java/com/facebook/presto/verifier/rewrite/QueryRewriter.java

@@ -35,6 +35,7 @@
 import com.facebook.presto.sql.tree.DropTable;
 import com.facebook.presto.sql.tree.DropView;
 import com.facebook.presto.sql.tree.Expression;
+import com.facebook.presto.sql.tree.FunctionCall;
 import com.facebook.presto.sql.tree.Identifier;
 import com.facebook.presto.sql.tree.Insert;
 import com.facebook.presto.sql.tree.IsNullPredicate;
@@ -84,6 +85,7 @@
 import static com.facebook.presto.common.type.TimestampWithTimeZoneType.TIMESTAMP_WITH_TIME_ZONE;
 import static com.facebook.presto.common.type.UnknownType.UNKNOWN;
 import static com.facebook.presto.common.type.VarcharType.VARCHAR;
+import static com.facebook.presto.geospatial.type.GeometryType.GEOMETRY;
 import static com.facebook.presto.hive.HiveUtil.parsePartitionValue;
 import static com.facebook.presto.hive.metastore.MetastoreUtil.toPartitionNamesAndValues;
 import static com.facebook.presto.sql.tree.LikeClause.PropertiesOption.INCLUDING;
@@ -424,9 +426,19 @@ private Query rewriteNonStorableColumns(Query query, ResultSetMetaData metadata)
         checkState(selectItems.size() == columnTypes.size(), "SelectItem count (%s) mismatches column count (%s)", selectItems.size(), columnTypes.size());
         for (int i = 0; i < selectItems.size(); i++) {
             SingleColumn singleColumn = (SingleColumn) selectItems.get(i);
-            Optional<Type> columnTypeRewrite = getColumnTypeRewrite(columnTypes.get(i));
+            Type columnType = columnTypes.get(i);
+            Optional<Type> columnTypeRewrite = getColumnTypeRewrite(columnType);
             if (columnTypeRewrite.isPresent()) {
-                newItems.add(new SingleColumn(new Cast(singleColumn.getExpression(), columnTypeRewrite.get().getTypeSignature().toString()), singleColumn.getAlias()));
+                Expression expression = singleColumn.getExpression();
+                if (columnType.equals(GEOMETRY)) {
+                    // Geometry type not a Hive writable type, thus it should be converted to VARCHAR type in WKT
+                    // format using the ST_AsText function.
+                    expression = new FunctionCall(QualifiedName.of("ST_AsText"), ImmutableList.of(expression));
+                }
+                else {
+                    expression = new Cast(expression, columnTypeRewrite.get().getTypeSignature().toString());
+                }
+                newItems.add(new SingleColumn(expression, singleColumn.getAlias()));
             }
             else {
                 newItems.add(singleColumn);
@@ -460,6 +472,9 @@ private Optional<Type> getColumnTypeRewrite(Type type)
         if (type.equals(UNKNOWN)) {
             return Optional.of(BIGINT);
         }
+        if (type.equals(GEOMETRY)) {
+            return Optional.of(VARCHAR);
+        }
         if (type instanceof DecimalType) {
             return Optional.of(DOUBLE);
         }