tree acd48c603df29d26c2c1184dac246cd58f4bc45e
parent dd992ec2375f8130fd1c7530e3b603b05963842e
author QiangCai <qiangcai@qq.com> 1593346332 +0800
committer liuzhi <371684521@qq.com> 1593393173 +0800

[CARBONDATA-3878] Get last modified time from 'tablestatus' file entry instead of segment file to reduce file operation 'getLastModifiedTime'

Why is this PR needed?
After the table has too many segments, file operation 'getLastModifiedTime' on all segment files will take a long time.

What changes were proposed in this PR?
Get last modified time from 'tablestatus' file entry instead of segment file to reduce file operation 'getLastModifiedTime'

Does this PR introduce any user interface change?
No

Is any new testcase added?
No

This closes #3814