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Added/Updated tests\bugs\gh_7466_plans_tracking_test.py: see notes
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pavel-zotov
parent
7e3ddec61c
commit
f11a0bc870
@ -28,6 +28,16 @@ NOTES:
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Discussed with dimitr, letters 18.08.2023.
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Checked on 5.0.0.1164
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[08-sep-2023] pzotov
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1. Changed plan output: it is desirable to show indentations but they are 'swallowed' when act.clean_stdout is displayed.
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Because of that, explained plan lines are 'padded' with dot character to their original length.
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2. Adjusted execution plan for one of queries to actual: one need to replace "Range Scan" with "List Scan" if we have
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subquery with IN-list which refers to some columns from outer query.
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See: https://github.com/FirebirdSQL/firebird/commit/5df6668c7bf5a4b27e15f687f8c6cc40e260ced8
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(Allow computable but non-invariant lists to be used for index lookup)
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Checked on 5.0.0.1200
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"""
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import locale
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import re
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@ -51,6 +61,10 @@ trace = ['log_initfini = false',
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'explain_plan = true',
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]
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def replace_leading(source, char="#"):
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stripped = source.lstrip()
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return char * (len(source) - len(stripped)) + stripped
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@pytest.mark.version('>=5.0')
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def test_1(act: Action, capsys):
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@ -98,7 +112,19 @@ def test_1(act: Action, capsys):
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select r.i + 1, dx.id, dx.pid
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from tdetl dx
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join r on dx.pid = r.id
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where exists(select * from tmain m0a where m0a.id <> dx.pid and m0a.x in(dx.y, dx.z) )
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where exists(
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select * from tmain m0a
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where
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m0a.id <> dx.pid
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-- ::: NB ::: Rest part is IN-list with computable but non-invariant elements.
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-- Execution plan for this kind was changed 07-sep-2023, see:
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-- https://github.com/FirebirdSQL/firebird/commit/5df6668c7bf5a4b27e15f687f8c6cc40e260ced8
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-- (Allow computable but non-invariant lists to be used for index lookup)
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-- See also: tests/functional/tabloid/test_e260ced8.py
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-- Here "Index "TMAIN_X" List Scan (full match)" will be!
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-- Old: "Index "TMAIN_X" Range Scan (full match)"
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and m0a.x in (dx.y, dx.z) -- ### ATTENTION ###
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)
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)
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select count(*) from r where r.i > 2
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into c;
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@ -146,92 +172,89 @@ def test_1(act: Action, capsys):
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start_show = 1
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continue
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if start_show and line.rstrip().split():
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print(line)
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print( replace_leading(line,'.') )
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expected_stdout = f"""
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Sub-query (invariant)
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-> Filter
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-> Aggregate
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-> Table "TDETL" as "K DY" Access By ID
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-> Index "TDETL_FK" Full Scan
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Cursor "K" (line 3, column 13)
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-> Filter (preliminary)
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-> Nested Loop Join (inner)
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-> Table "TMAIN" as "K M4" Full Scan
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-> Filter
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-> Table "TDETL" as "K D4 DX" Access By ID
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-> Bitmap And
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-> Bitmap
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-> Index "TDETL_FK" Range Scan (full match)
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-> Bitmap
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-> Index "TDETL_Y" Range Scan (upper bound: 1/1)
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....-> Filter
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........-> Aggregate
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............-> Table "TDETL" as "K DY" Access By ID
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................-> Index "TDETL_FK" Full Scan
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Cursor "K"(line, column)
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....-> Filter (preliminary)
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........-> Nested Loop Join (inner)
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............-> Table "TMAIN" as "K M4" Full Scan
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............-> Filter
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................-> Table "TDETL" as "K D4 DX" Access By ID
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....................-> Bitmap And
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........................-> Bitmap
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............................-> Index "TDETL_FK" Range Scan (full match)
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........................-> Bitmap
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............................-> Index "TDETL_Y" Range Scan (upper bound: 1/1)
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Sub-query
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-> Filter
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-> Table "TMAIN" as "M0" Access By ID
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-> Bitmap
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-> Index "TMAIN_X" Range Scan (lower bound: 1/1)
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....-> Filter
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........-> Table "TMAIN" as "M0" Access By ID
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............-> Bitmap
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................-> Index "TMAIN_X" Range Scan (lower bound: 1/1)
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Sub-query
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-> Filter
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-> Table "TMAIN" as "R M0A" Access By ID
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-> Bitmap Or
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-> Bitmap
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-> Index "TMAIN_X" Range Scan (full match)
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-> Bitmap
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-> Index "TMAIN_X" Range Scan (full match)
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Select Expression (line 22, column 13)
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-> Singularity Check
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-> Aggregate
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-> Filter
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-> Recursion
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-> Filter
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-> Table "TDETL" as "R D0" Access By ID
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-> Bitmap
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-> Index "TDETL_FK" Range Scan (full match)
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-> Filter
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-> Table "TDETL" as "R DX" Access By ID
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-> Bitmap
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-> Index "TDETL_FK" Range Scan (full match)
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Sub-query (line 37, column 26)
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-> Singularity Check
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-> Aggregate
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-> Table "TMAIN" as "M1A" Full Scan
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Sub-query (line 38, column 30)
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-> Singularity Check
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-> Aggregate
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-> Table "TMAIN" as "M1B" Access By ID
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-> Index "TMAIN_X" Full Scan
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Sub-query (line 39, column 30)
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-> Singularity Check
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-> Aggregate
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-> Table "TDETL" as "D1B" Access By ID
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-> Index "TDETL_FK" Full Scan
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Sub-query (line 40, column 30)
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-> Singularity Check
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-> Aggregate
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-> Table "TDETL" as "D1C" Full Scan
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Select Expression (line 44, column 13)
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-> Aggregate
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-> Nested Loop Join (inner)
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-> Filter
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-> Table "TMAIN" as "M2" Access By ID
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-> Index "TMAIN_PK" Full Scan
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-> Bitmap
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-> Index "TMAIN_X" Range Scan (lower bound: 1/1)
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-> Filter
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-> Table "TDETL" as "D" Access By ID
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-> Bitmap
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-> Index "TDETL_PK" Unique Scan
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....-> Filter
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........-> Table "TMAIN" as "R M0A" Access By ID
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............-> Bitmap
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................-> Index "TMAIN_X" List Scan (full match)
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Select Expression(line, column)
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....-> Singularity Check
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........-> Aggregate
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............-> Filter
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................-> Recursion
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....................-> Filter
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........................-> Table "TDETL" as "R D0" Access By ID
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............................-> Bitmap
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................................-> Index "TDETL_FK" Range Scan (full match)
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....................-> Filter
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........................-> Table "TDETL" as "R DX" Access By ID
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............................-> Bitmap
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................................-> Index "TDETL_FK" Range Scan (full match)
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Sub-query(line, column)
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....-> Singularity Check
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........-> Aggregate
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............-> Table "TMAIN" as "M1A" Full Scan
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Sub-query(line, column)
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....-> Singularity Check
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........-> Aggregate
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............-> Table "TMAIN" as "M1B" Access By ID
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................-> Index "TMAIN_X" Full Scan
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Sub-query(line, column)
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....-> Singularity Check
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........-> Aggregate
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............-> Table "TDETL" as "D1B" Access By ID
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................-> Index "TDETL_FK" Full Scan
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Sub-query(line, column)
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....-> Singularity Check
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........-> Aggregate
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............-> Table "TDETL" as "D1C" Full Scan
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Select Expression(line, column)
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....-> Aggregate
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........-> Nested Loop Join (inner)
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............-> Filter
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................-> Table "TMAIN" as "M2" Access By ID
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....................-> Index "TMAIN_PK" Full Scan
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........................-> Bitmap
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............................-> Index "TMAIN_X" Range Scan (lower bound: 1/1)
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............-> Filter
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................-> Table "TDETL" as "D" Access By ID
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....................-> Bitmap
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........................-> Index "TDETL_PK" Unique Scan
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Sub-query
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-> Filter
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-> Table "TDETL" as "D" Access By ID
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-> Bitmap
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-> Index "TDETL_FK" Range Scan (full match)
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Select Expression (line 54, column 13)
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-> Filter
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-> Table "TMAIN" as "M3" Access By ID
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-> Bitmap
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-> Index "TMAIN_X" Range Scan (lower bound: 1/1)
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0 ms
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....-> Filter
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........-> Table "TDETL" as "D" Access By ID
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............-> Bitmap
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................-> Index "TDETL_FK" Range Scan (full match)
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Select Expression(line, column)
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....-> Filter
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........-> Table "TMAIN" as "M3" Access By ID
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............-> Bitmap
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................-> Index "TMAIN_X" Range Scan (lower bound: 1/1)
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......0 ms
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"""
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act.expected_stdout = expected_stdout
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