commit | f1309fa3af6826e73377e54081160228eb7ab951 | [log] [tgz] |
---|---|---|
author | Julian Hyde <jhyde@apache.org> | Mon May 03 19:18:33 2021 -0700 |
committer | Julian Hyde <jhyde@apache.org> | Wed May 05 17:02:47 2021 -0700 |
tree | a150c1169304021f0fbc5fdaa7425889abeb7224 | |
parent | e193b18ac23cde8bdac41e3864219ff1e9d6e0c5 [diff] |
[CALCITE-4594] Interpreter returns wrong result when Values has zero fields Currently, if a Values RelNode has a zero-field row type and N rows, the Interpreter returns zero rows; it should, of course, return N rows. As a project, we have not decided whether to allow zero-field row types. Unless and until we ban them (by throwing whenever we see them), the Interpreter should do its best when it sees them, not return wrong results.
Apache Calcite is a dynamic data management framework.
It contains many of the pieces that comprise a typical database management system but omits the storage primitives. It provides an industry standard SQL parser and validator, a customisable optimizer with pluggable rules and cost functions, logical and physical algebraic operators, various transformation algorithms from SQL to algebra (and the opposite), and many adapters for executing SQL queries over Cassandra, Druid, Elasticsearch, MongoDB, Kafka, and others, with minimal configuration.
For more details, see the home page.