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https://issues.apache.org/jira/browse/CALCITE-3108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16853916#comment-16853916
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Muhammad Gelbana edited comment on CALCITE-3108 at 6/2/19 10:12 AM:
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My branches got mixed up and I added this feature to an unmurged PR that
supports the {{::}} operator. Please refer to the description for the updated
sample query.
I added {{TEXT}} as a keyword so the returned result set column type name would
be {{TEXT}} as returned from a PostgreSQL DB.
I don't usually like touching the parser so you're suggestion sounds more Java
oriented and I prefer that.
I tried figuring out how can I do what you suggested and I found I can it by
exposing that type through the exposed schemas. But I can't find a way to do so
for the root schema to get the example query to work.
was (Author: mgelbana):
My branches got mixed up and I added this feature to an unmurged PR that
supports the {{::}} operator. Please refer to the description for the updated
sample query.
I added {{TEXT}} as a keyword so the returned result set column type name would
be {{TEXT}} as returned from a PostgreSQL DB.
I don't usually like touching the parser so you're suggestion sounds more Java
oriented, as I'll have to acquire the {{<identifier>}} and act accordingly. Is
it possible to easily return the column type name as TEXT if I follow that
approach ?
I still have to provide casting rules to support casting types to that
identifier.
> Babel parser should parse the PostgreSQL TEXT type
> --------------------------------------------------
>
> Key: CALCITE-3108
> URL: https://issues.apache.org/jira/browse/CALCITE-3108
> Project: Calcite
> Issue Type: Bug
> Components: babel, core
> Affects Versions: 1.19.0
> Reporter: Muhammad Gelbana
> Assignee: Muhammad Gelbana
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.20.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Casting to PostgreSQL TEXT (ie. VARCHAR) isn't currently supported. The
> following query would fail in parsing and execution.
> {code:sql}SELECT CAST(EXPR$0 AS text) FROM (VALUES (1, 2, 3)){code}
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