Make Coral-Schema return correct schema while selecting field from a …

…nested struct (linkedin#110)

* Bump calcite version to 1.21.0.148

* Support selecting from nested struct for coral schema

* temporary commit for itest

* Add support to select struct field from map value

* Added comment to open the PR

* Add unit test and address comment

Support lateral view explode map (linkedin#107)

* support lateral unnest map

* Added unit test

* Modified comment

* Addressed the comments

Allows selecting empty map (linkedin#105)

* Bump calcite version to allow selecting empty map

Change the way of getting RelDataType for fuzzy union (linkedin#102)

* modified the way of getting unionBranch's RelDataType

* Modified code to pass spotless checking

* Added unit test

Fix the link of Slack invite to remove email domain requirement (link…

…edin#104)

Allow empty array (linkedin#101)

* Bump calcite version to 1.21.0.148

* Allow users to select empty array with calcite 1.21.0.149

Manually registered some UDFs (linkedin#100)

* Bump calcite version to 1.21.0.148

* Manually registered some UDFs

* Modified to pass spotless check

Bump calcite version to 1.21.0.148 (linkedin#97)

Thanks @ljfgem

Update calcite to fix handling of queries with nested group by (linke…

…din#96)

* Bump linkedin-calcite version to 1.21.0.146

Motivation for version bump is fix for handling
translation for queries with nested group by.

* Add regression test for nested group by conversion

Avoid throwing exception if fails to get columns using deserializer (l…

…inkedin#94)