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11d1784c0a
Currently we do not codegen CHAR types. This change checks for CHAR literals in a expr and disables codegen. Change-Id: I7e4e27350c53bc69ce412a004e392e7480214f73 Reviewed-on: http://gerrit.cloudera.org:8080/9102 Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com> Tested-by: Impala Public Jenkins
47 lines
1.2 KiB
Plaintext
47 lines
1.2 KiB
Plaintext
====
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---- QUERY
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# alltypes has 7300 rows - codegen should be enabled if there
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# are < 1000 backend daemons.
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set disable_codegen_rows_threshold=8;
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select count(*) from alltypes t1
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join alltypestiny t2 on t1.id = t2.id
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---- RESULTS
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8
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---- TYPES
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bigint
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---- RUNTIME_PROFILE
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# Verify that codegen was enabled for join and scan
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row_regex: .*Build Side Codegen Enabled.*
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row_regex: .*TEXT Codegen Enabled.*
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====
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---- QUERY
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# alltypes has 7300 rows - codegen should be disabled regardless
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# of # of backend impala daemons.
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set disable_codegen_rows_threshold=8000;
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select count(*) from alltypes t1
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join alltypestiny t2 on t1.id = t2.id
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---- RESULTS
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8
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---- TYPES
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bigint
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---- RUNTIME_PROFILE
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# Verify that codegen was disabled
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row_regex: .*Codegen Disabled: disabled due to optimization hints.*
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====
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---- QUERY
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# IMPALA-6435: We do not codegen char columns. This fix checks for a
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# CHAR type literal in the expr and disables codegen. This query will crash
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# impala without the fix.
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select count(*) from (
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select cast('a' as char(4)) as s from functional.alltypestiny
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union all
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select cast('a' as char(4)) as s from functional.alltypestiny
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union all
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select cast(NULL as char(4)) as s from functional.alltypestiny
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) t
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---- RESULTS
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24
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---- TYPES
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bigint
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====
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