wuchong commented on a change in pull request #10096: [FLINK-14623][table-api]
Add computed column information into TableSc…
URL: https://github.com/apache/flink/pull/10096#discussion_r343436104
##########
File path:
flink-table/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/ddl/SqlCreateTable.java
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@@ -237,6 +239,36 @@ public String getColumnSqlString() {
return writer.toString();
}
+ /**
+ * Split the computed columns expression into string key-value pairs.
+ *
+ * <p>For example, {@code col2 as to_timestamp(col1)} would be split
into pair:
+ * (col2, to_timestamp(col1)).
+ *
+ * @return computed column name to expression mapping
+ **/
+ public Map<String, String> getComputedColumnMap() {
Review comment:
+1 to introduce it when we need it.
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