Sergey Nuyanzin created CALCITE-5570: ----------------------------------------
Summary: Support nested map type for SqlDataTypeSpec Key: CALCITE-5570 URL: https://issues.apache.org/jira/browse/CALCITE-5570 Project: Calcite Issue Type: Improvement Components: core Reporter: Sergey Nuyanzin There was added a similar support for arrays/multisets at https://issues.apache.org/jira/browse/CALCITE-3250 however there is no support for maps so far. The issue is to add such support. I think I'd like to clarify is syntax for maps since it has 2 internal subtypes for keys and values may be something similar to ROW with delimiter like {code:sql} SELECT CAST(NULL AS MAP(INT, INT)); -- or with square brackets similar to map constructor SELECT CAST(NULL AS MAP[INT, INT]); -- or with angle (Flink syntax) SELECT CAST(NULL AS MAP<INT, INT>); {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)