diff options
| author | guowei2 <guowei2@asiainfo.com> | 2015-04-04 02:02:30 +0800 |
|---|---|---|
| committer | Cheng Lian <lian@databricks.com> | 2015-04-04 02:02:30 +0800 |
| commit | c23ba81b8cf86c3a085de8ddfef9403ff6fcd87f (patch) | |
| tree | 9f42058a301732153b85ede6fed4d8316d2f2892 /project | |
| parent | dc6dff248d8f5d7de22af64b0586dfe3885731df (diff) | |
| download | spark-c23ba81b8cf86c3a085de8ddfef9403ff6fcd87f.tar.gz spark-c23ba81b8cf86c3a085de8ddfef9403ff6fcd87f.tar.bz2 spark-c23ba81b8cf86c3a085de8ddfef9403ff6fcd87f.zip | |
[SPARK-5203][SQL] fix union with different decimal type
When union non-decimal types with decimals, we use the following rules:
- FIRST `intTypeToFixed`, then fixed union decimals with precision/scale p1/s2 and p2/s2 will be promoted to
DecimalType(max(p1, p2), max(s1, s2))
- FLOAT and DOUBLE cause fixed-length decimals to turn into DOUBLE (this is the same as Hive,
but note that unlimited decimals are considered bigger than doubles in WidenTypes)
Author: guowei2 <guowei2@asiainfo.com>
Closes #4004 from guowei2/SPARK-5203 and squashes the following commits:
ff50f5f [guowei2] fix code style
11df1bf [guowei2] fix decimal union with double, double->Decimal(15,15)
0f345f9 [guowei2] fix structType merge with decimal
101ed4d [guowei2] fix build error after rebase
0b196e4 [guowei2] code style
fe2c2ca [guowei2] handle union decimal precision in 'DecimalPrecision'
421d840 [guowei2] fix union types for decimal precision
ef2c661 [guowei2] fix union with different decimal type
Diffstat (limited to 'project')
0 files changed, 0 insertions, 0 deletions