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0d2919fe7f
This patch cleans up analysis and execution of scalar and aggregate functions so that there is no difference between how builtins and user functions are handled. The only difference is that the catalog is populated with the builtins all the time. The BE always gets a TFunction object and just executes it (builtins will have an empty hdfs file location). This removes the opcode registry and all of the functionality is subsumed by the catalog, most of which was already duplicated there anyway. This also introduces the concept of a system database; databases that the user cannot modify and is populated automatically on startup. Change-Id: Iaa3f84dad0a1a57691f5c7d8df7305faf01d70ed Reviewed-on: http://gerrit.ent.cloudera.com:8080/1386 Reviewed-by: Nong Li <nong@cloudera.com> Tested-by: jenkins Reviewed-on: http://gerrit.ent.cloudera.com:8080/1577
136 lines
2.6 KiB
Plaintext
136 lines
2.6 KiB
Plaintext
select name, zip
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from functional.testtbl
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order by name
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limit 1
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---- PLAN
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01:TOP-N [LIMIT=1]
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| order by: name ASC
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00:SCAN HDFS [functional.testtbl]
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partitions=1/1 size=0B
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---- DISTRIBUTEDPLAN
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03:TOP-N [LIMIT=1]
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| order by: name ASC
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02:EXCHANGE [PARTITION=UNPARTITIONED]
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01:TOP-N [LIMIT=1]
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| order by: name ASC
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00:SCAN HDFS [functional.testtbl]
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partitions=1/1 size=0B
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====
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select zip, count(*)
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from functional.testtbl
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where name like 'm%'
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group by 1
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order by 2 desc
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limit 10
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---- PLAN
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02:TOP-N [LIMIT=10]
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| order by: count(*) DESC
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01:AGGREGATE [FINALIZE]
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| output: count(*)
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| group by: zip
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00:SCAN HDFS [functional.testtbl]
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partitions=1/1 size=0B
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predicates: name LIKE 'm%'
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---- DISTRIBUTEDPLAN
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06:TOP-N [LIMIT=10]
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| order by: count(*) DESC
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05:EXCHANGE [PARTITION=UNPARTITIONED]
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02:TOP-N [LIMIT=10]
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| order by: count(*) DESC
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04:AGGREGATE [MERGE FINALIZE]
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| output: sum(count(*))
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| group by: zip
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03:EXCHANGE [PARTITION=HASH(zip)]
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01:AGGREGATE
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| output: count(*)
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| group by: zip
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00:SCAN HDFS [functional.testtbl]
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partitions=1/1 size=0B
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predicates: name LIKE 'm%'
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====
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select int_col, sum(float_col)
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from functional_hbase.alltypessmall
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where id < 5
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group by 1
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order by 2
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limit 4
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---- PLAN
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02:TOP-N [LIMIT=4]
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| order by: sum(float_col) ASC
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01:AGGREGATE [FINALIZE]
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| output: sum(float_col)
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| group by: int_col
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00:SCAN HBASE [functional_hbase.alltypessmall]
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predicates: id < 5
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---- DISTRIBUTEDPLAN
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06:TOP-N [LIMIT=4]
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| order by: sum(float_col) ASC
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05:EXCHANGE [PARTITION=UNPARTITIONED]
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02:TOP-N [LIMIT=4]
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| order by: sum(float_col) ASC
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04:AGGREGATE [MERGE FINALIZE]
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| output: sum(sum(float_col))
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| group by: int_col
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03:EXCHANGE [PARTITION=HASH(int_col)]
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01:AGGREGATE
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| output: sum(float_col)
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| group by: int_col
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00:SCAN HBASE [functional_hbase.alltypessmall]
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predicates: id < 5
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====
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select int_col, sum(float_col), min(float_col)
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from functional_hbase.alltypessmall
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group by 1
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order by 2,3 desc
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limit 0
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---- PLAN
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02:TOP-N [LIMIT=0]
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| order by: sum(float_col) ASC, min(float_col) DESC
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01:AGGREGATE [FINALIZE]
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| output: sum(float_col), min(float_col)
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| group by: int_col
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00:SCAN HBASE [functional_hbase.alltypessmall]
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---- DISTRIBUTEDPLAN
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06:TOP-N [LIMIT=0]
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| order by: sum(float_col) ASC, min(float_col) DESC
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05:EXCHANGE [PARTITION=UNPARTITIONED]
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02:TOP-N [LIMIT=0]
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| order by: sum(float_col) ASC, min(float_col) DESC
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04:AGGREGATE [MERGE FINALIZE]
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| output: sum(sum(float_col)), min(min(float_col))
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| group by: int_col
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03:EXCHANGE [PARTITION=HASH(int_col)]
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01:AGGREGATE
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| output: sum(float_col), min(float_col)
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| group by: int_col
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00:SCAN HBASE [functional_hbase.alltypessmall]
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====
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