Github user paul-rogers commented on a diff in the pull request:
https://github.com/apache/drill/pull/729#discussion_r102867030
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/ops/FragmentContext.java ---
@@ -245,6 +247,18 @@ public SchemaPlus getRootSchema() {
}
/**
+ * Returns the statement type (e.g. SELECT, CTAS, ANALYZE) from the
query context.
+ * @return query statement type {@link SqlStatementType}, if known.
+ */
+ public SqlStatementType getSQLStatementType() {
+ if (queryContext == null) {
+ fail(new UnsupportedOperationException("Statement type is only valid
for root fragment. " +
--- End diff --
The `fail()` call is for runtime errors due to external causes, user error,
etc. Here, we have a programming error. Better ways to handle this:
```
if (queryContext == null) {
throw new IllegalStateException("Statement type...");
}
```
Or just:
```
Preconditions.checkNotNull(queryContext);
```
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