vdiravka commented on a change in pull request #1723: DRILL-7063: Seperate
metadata cache file into summary, file metadata
URL: https://github.com/apache/drill/pull/1723#discussion_r270729791
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File path:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/handlers/RefreshMetadataHandler.java
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@@ -161,7 +161,7 @@ public PhysicalPlan getPlan(SqlNode sqlNode) throws
ForemanSetupException {
*/
private SqlNodeList getColumnList(final SqlRefreshMetadata
sqlrefreshMetadata) {
SqlNodeList columnList = sqlrefreshMetadata.getFieldList();
- if (columnList == null || !SqlNodeList.isEmptyList(columnList)) {
Review comment:
`SqlNodeList.isEmptyList(node)` checks `node instanceof SqlNodeList`,
therefore no need to check `columnList == null` explicitly.
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