JingsongLi commented on a change in pull request #10371: [FLINK-14953][formats]
use table type to build parquet FilterPredicate
URL: https://github.com/apache/flink/pull/10371#discussion_r353517461
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File path:
flink-formats/flink-parquet/src/main/java/org/apache/flink/formats/parquet/ParquetTableSource.java
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@@ -447,8 +453,16 @@ private String getColumnName(BinaryComparison comp) {
@Nullable
private Tuple2<Column, Comparable>
extractColumnAndLiteral(BinaryComparison comp) {
- TypeInformation<?> typeInfo = getLiteralType(comp);
String columnName = getColumnName(comp);
+ TypeInformation<?> typeInfo = null;
+ try {
+ String[] columnPath = columnName.split("\\.");
Review comment:
You can have a `ColumnPath columnPath =
ColumnPath.fromDotString(columnName);`
And use `parquetSchema.getType(columnPath.toArray())`.
In this way, you can avoid introduce hard code `columnName.split("\\.")`.
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