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doris/fe
Elvin wei e880dde7a5 [feature-wip](statistics) step1: create the statistics job (#8858)
This is the first PR for statistics collection includes some implementations of the statistics(#6370), it will not affect any existing code and users will not be able to create statistics job.
It mainly implements the semantic checking module for statistical information collection jobs, and the job creation module.
The syntax is:

ANALYZE [[ db_name.tb_name ] [( column_name [, ...] )], ...] [ PROPERTIES(...) ]

e.g. 
ANALYZE;
ANALYZE tbl1;
ANALYZE tbl1(col1, col2) PROPERTIES("cbo_ statistics_ task_ timeout" = "10");
Two configurations have been added:

Timeout time of a single task max_cbo_statistics_task_timeout_sec
The maximum number of running jobs the system can receive cbo_max_statistics_job_num

Co-authored-by: weizhengte <1141550741@qq.com>
Co-authored-by: weizhengte <weizhengte@foxmail.com>
Co-authored-by: EmmyMiao87 <522274284@qq.com>
Co-authored-by: frankywei <frankywei@tencent.com>
2022-04-22 18:24:54 +08:00
..

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# fe-common

This module is used to store some common classes of other modules.

# spark-dpp

This module is Spark DPP program, used for Spark Load function.
Depends: fe-common

# fe-core

This module is the main process module of FE.
Depends: fe-common, spark-dpp