doris

Files

924060929 2f89ec961f [enhancement](Nereids) Optimize expression (#32067 )

1. optimize expression comparison by
      a) flatter method call stack
      b) short circuit: if some simple field not equals, then return, and not compare to the big field, like Alias.name
    2. lazy compute Alias.name which is computed by toSql. Now Alias.toSlot() will not generate long name immediately
    3. cache Expresssion.inputSlots, it can save time when invoke this method multiple times
    4. always compute Expression.unbound, it can avoid traverse the big expression tree

this pr can save about 200ms when submit some long sqls

2024-03-15 18:00:02 +08:00

.idea

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be-java-extensions

[fix](jdbc catalog) fix type conversion error in MySQL JDBC Driver 5.x (#31880 )

2024-03-12 14:07:57 +08:00

check/checkstyle

[minor](import) modify some imports (#28206 )

2023-12-12 11:39:54 +08:00

fe-common

[Fix](smooth-upgrade) Fix incompatibility when upgrade from 2.0 to 2.1 (#32220 )

2024-03-14 11:23:05 +08:00

fe-core

[enhancement](Nereids) Optimize expression (#32067 )

2024-03-15 18:00:02 +08:00

hive-udf

[fix](hive-udf) Fixed the calculation result error in Hive bitmap UDF (#29073 )

2023-12-30 17:25:33 +08:00

spark-dpp

[Improve](common)Optimize logging performance with LOG.isDebugEnabled() (#31091 )

2024-02-20 09:16:14 +08:00

pom.xml

[fix](jdbc catalog) Change Druid Pool dependency to version 1.2.5 (#31783 )

2024-03-06 13:07:49 +08:00

README

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README

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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