Eugene-Mark opened a new pull request, #36499:
URL: https://github.com/apache/spark/pull/36499
### What changes were proposed in this pull request?
- Implemented getCatalystType method in TeradataDialect
- Handle Types.NUMERIC explicitly
### Why are the changes needed?
Load table from Teradata, if the type of column in Teradata is `Number`, it
will be converted to `DecimalType(38,0)` can lose the fractional part of
original data.
### Does this PR introduce _any_ user-facing change?
Yes, it will convert Number type to DecimalType(38,18) if the scale is 0, so
that keep the fractional part in some way.
### How was this patch tested?
UT is added to JDBCSuite.scala.
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