Bryan Gerber created PHOENIX-2094:
-------------------------------------
Summary: Query hint ignored for functional index
Key: PHOENIX-2094
URL: https://issues.apache.org/jira/browse/PHOENIX-2094
Project: Phoenix
Issue Type: Bug
Reporter: Bryan Gerber
Hints are not being used for functional index.
EXPLAIN SELECT /*+ INDEX(LOG LOG_LOWER_REQUEST_IDX) */ * FROM LOG WHERE
LOWER(RQ) LIKE '/jquery%';
+------------------------------------------+
| CLIENT 40-CHUNK PARALLEL 40-WAY FULL SCAN OVER LOG |
| SERVER FILTER BY LOWER(RQ) LIKE '/jquery%' |
+------------------------------------------+
Test table has 2.9 million records; production table is many orders of
magnitude larger.
Here’s a simplified schema for the test table:
CREATE TABLE IF NOT EXISTS LOG
(
TS VARCHAR NOT NULL,
f VARCHAR NOT NULL,
r INTEGER NOT NULL,
sa VARCHAR,
da VARCHAR,
rq VARCHAR
CONSTRAINT pkey PRIMARY KEY (TS, f, r)
)
TTL='5616000',KEEP_DELETED_CELLS='false',IMMUTABLE_ROWS=true,COMPRESSION='SNAPPY',SALT_BUCKETS=40,MAX_FILESIZE='10000000000',SPLIT_POLICY='org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy';
CREATE INDEX IF NOT EXISTS LOG_LOWER_REQUEST_IDX ON LOG(LOWER(rq))
TTL='5616000',KEEP_DELETED_CELLS='false',COMPRESSION='SNAPPY',MAX_FILESIZE='10000000000',SPLIT_POLICY='org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy';
CREATE INDEX IF NOT EXISTS LOG_REQUEST_IDX ON LOG(rq)
TTL='5616000',KEEP_DELETED_CELLS='false',COMPRESSION='SNAPPY',MAX_FILESIZE='10000000000',SPLIT_POLICY='org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy';
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
