testdata/workloads/functional-query/queries/QueryTest/disable-codegen.test

====
---- QUERY
# alltypes has 7300 rows - codegen should be enabled if there
# are < 1000 backend daemons.
set disable_codegen_rows_threshold=8;
select count(*) from alltypes t1
  join alltypestiny t2 on t1.id = t2.id
---- RESULTS
8
---- TYPES
bigint
---- RUNTIME_PROFILE
# Verify that codegen was enabled for join and scan
row_regex: .*Build Side Codegen Enabled.*
row_regex: .*TEXT Codegen Enabled.*
====
---- QUERY
# alltypes has 7300 rows - codegen should be disabled regardless
# of # of backend impala daemons.
set disable_codegen_rows_threshold=8000;
select count(*) from alltypes t1
  join alltypestiny t2 on t1.id = t2.id
---- RESULTS
8
---- TYPES
bigint
---- RUNTIME_PROFILE
# Verify that codegen was disabled
row_regex: .*Codegen Disabled: disabled due to optimization hints.*
====
---- QUERY
# IMPALA-6435: We do not codegen char columns. This fix checks for a
# CHAR type literal in the expr and disables codegen. This query will crash
# impala without the fix.
select count(*) from (
  select cast('a' as char(4)) as s from functional.alltypestiny
  union all
  select cast('a' as char(4)) as s from functional.alltypestiny
  union all
  select cast(NULL as char(4)) as s from functional.alltypestiny
) t
---- RESULTS
24
---- TYPES
bigint
====