Sahil Takiar has uploaded this change for review. (
http://gerrit.cloudera.org:8080/16188
Change subject: IMPALA-9478: Profiles should indicate if custom UDFs are being
used
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IMPALA-9478: Profiles should indicate if custom UDFs are being used
Adds a marker to runtime profiles and explain plans indicating if custom
(e.g. non-built in) user-defined functions are being used. For explain
plans, a SQL-style comment is added after any function call. For runtime
profiles, a new Frontend entry called "User Defined Functions (UDFs)"
lists out all UDFs analyzed during planning.
Take the following example:
create function hive_lower(string) returns string location
'/test-warehouse/hive-exec.jar'
symbol='org.apache.hadoop.hive.ql.udf.UDFLower';
set explain_level=3;
explain select * from functional.alltypes order by hive_lower(string_col);
01:SORT
order by: default.hive_lower(string_col) /* JAVA UDF */ ASC
materialized: default.hive_lower(string_col) /* JAVA UDF */
This shows up in the runtime profile as well.
When the above query is actually run, the runtime profile includes the
following entry:
Frontend
User Defined Functions (UDFs): default.hive_lower, default.hive_lower
Testing:
* Will add tests after confirming approach
Change-Id: I79122e6cc74fd5a62c76962289a1615fbac2f345
---
M fe/src/main/java/org/apache/impala/analysis/FunctionCallExpr.java
M fe/src/main/java/org/apache/impala/service/FrontendProfile.java
2 files changed, 23 insertions(+), 0 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/88/16188/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I79122e6cc74fd5a62c76962289a1615fbac2f345
Gerrit-Change-Number: 16188
Gerrit-PatchSet: 1
Gerrit-Owner: Sahil Takiar <[email protected]>
