Kent Yao ae6b711b26 [SPARK-29941][SQL] Add ansi type aliases for char and decimal ... ### What changes were proposed in this pull request? Checked with SQL Standard and PostgreSQL > CHAR is equivalent to CHARACTER. DEC is equivalent to DECIMAL. INT is equivalent to INTEGER. VARCHAR is equivalent to CHARACTER VARYING. ... ```sql postgres=# select dec '1.0'; numeric --------- 1.0 (1 row) postgres=# select CHARACTER '. second'; bpchar ---------- . second (1 row) postgres=# select CHAR '. second'; bpchar ---------- . second (1 row) ``` ### Why are the changes needed? For better ansi support ### Does this PR introduce any user-facing change? yes, we add character as char and dec as decimal ### How was this patch tested? add ut Closes #26574 from yaooqinn/SPARK-29941. Authored-by: Kent Yao <yaooqinn@hotmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>		2019-11-18 23:30:31 +08:00
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main	[SPARK-29941][SQL] Add ansi type aliases for char and decimal	2019-11-18 23:30:31 +08:00
test	[SPARK-29941][SQL] Add ansi type aliases for char and decimal	2019-11-18 23:30:31 +08:00