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Added/Updated tests\bugs\gh_7350_test.py: several changes after fixed gh-7700, see notes

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pavel-zotov 2023-09-13 12:49:15 +03:00
parent 2e7d814168
commit 733eead599
1 changed files with 292 additions and 116 deletions
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408
tests/bugs/gh_7350_test.py
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@ -9,6 +9,7 @@ DESCRIPTION: test verifies ability to get records from table which already has s
2) PSQL which uses static SQL code 2) PSQL which uses static SQL code
3) PSQL which uses ES/EDS mechanism. 3) PSQL which uses ES/EDS mechanism.
Two type of access mode is checked: READ and READ_WRITE Two type of access mode is checked: READ and READ_WRITE
Both WAIT and NO WAIT modes are used, but for WAIT we have to skip exectuion for TABLE STABILITY and RC NO_REC_VER.
All kinds of transaction isolation levels are involved: TABLE STABILITY; SNAPSHOT; RC READ_CONSISTENCY; RC REC_VER and RC NO_REC_VER. All kinds of transaction isolation levels are involved: TABLE STABILITY; SNAPSHOT; RC READ_CONSISTENCY; RC REC_VER and RC NO_REC_VER.
NOTES: NOTES:
[27.02.2023] pzotov [27.02.2023] pzotov
@ -16,8 +17,22 @@ NOTES:
1) Parameter ReadConsistency in firebird.conf must be set to 0, i.e. NOT-default value. 1) Parameter ReadConsistency in firebird.conf must be set to 0, i.e. NOT-default value.
2) Query that uses TIL = "RC NO_record_version" actually can not obtain any records, despite usage of SKIP LOCKED clause. It always fail with: 2) Query that uses TIL = "RC NO_record_version" actually can not obtain any records, despite usage of SKIP LOCKED clause. It always fail with:
"-read conflicts with concurrent update / -concurrent transaction number is ..." "-read conflicts with concurrent update / -concurrent transaction number is ..."
3) NB: only persistent table is checked. For GTT it is unable to run 'select ... with lock' or 'update/delete ... skip locked'
(using two transactions for single attach): exception raises with message: "SQLSTATE = HY000 / Cannot select temporary table ... WITH LOCK"
Discussed with dimitr and hvlad, 13.09.2023
Checked on 5.0.0.959 SS/CS. Checked on 5.0.0.959 SS/CS.
[13.09.2023] pzotov
1. Removed limit for selected rows (previous: "rows 2").
2. Added WAIT mode to be checked after fixed https://github.com/FirebirdSQL/firebird/issues/7700
( https://github.com/FirebirdSQL/firebird/commit/5b14baa37b6ee214cd8ccc21f2e99dce119fe60e )
3. NOTE: before fix gh-7700, following statement hanged:
set transaction read committed record_version WAIT;
select id from test order by id with lock skip locked
Checked on 5.0.0.1209
""" """
import pytest import pytest
@ -33,32 +48,40 @@ substitutions = [ ('transaction number is \\d+', 'transaction number is'),
] ]
act = python_act('db', substitutions = substitutions) act = python_act('db', substitutions = substitutions)
CHECK_SQL = 'select id from test order by id rows 2 with lock skip locked' CHECK_SQL = 'select id from test order by id with lock skip locked'
expected_stdout = f""" expected_stdout = f"""
QUERY_TYPE = DSQL, TIL = SERIALIZABLE, ACCESS = READ: QUERY_TYPE = DSQL, TIL = SERIALIZABLE, ACCESS = READ, WAIT = NO_WAIT:
lock conflict on no wait transaction lock conflict on no wait transaction
-Acquire lock for relation (TEST) failed -Acquire lock for relation (TEST) failed
-901 -901
335544345 335544345
335544382 335544382
QUERY_TYPE = DSQL, TIL = SNAPSHOT, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = DSQL, TIL = SNAPSHOT, ACCESS = READ:
attempted update during read-only transaction attempted update during read-only transaction
-817 -817
335544361 335544361
QUERY_TYPE = DSQL, TIL = SNAPSHOT, ACCESS = READ, WAIT = WAIT:
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ:
attempted update during read-only transaction attempted update during read-only transaction
-817 -817
335544361 335544361
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ:
attempted update during read-only transaction attempted update during read-only transaction
-817 -817
335544361 335544361
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ, WAIT = WAIT:
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = READ: attempted update during read-only transaction
-817
335544361
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ, WAIT = NO_WAIT:
attempted update during read-only transaction
-817
335544361
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ, WAIT = WAIT:
attempted update during read-only transaction
-817
335544361
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = READ, WAIT = NO_WAIT:
deadlock deadlock
-read conflicts with concurrent update -read conflicts with concurrent update
-concurrent transaction number is -concurrent transaction number is
@ -66,27 +89,61 @@ expected_stdout = f"""
335544336 335544336
335545096 335545096
335544878 335544878
QUERY_TYPE = DSQL, TIL = SERIALIZABLE, ACCESS = WRITE, WAIT = NO_WAIT:
QUERY_TYPE = DSQL, TIL = SERIALIZABLE, ACCESS = WRITE:
lock conflict on no wait transaction lock conflict on no wait transaction
-Acquire lock for relation (TEST) failed -Acquire lock for relation (TEST) failed
-901 -901
335544345 335544345
335544382 335544382
QUERY_TYPE = DSQL, TIL = SNAPSHOT, ACCESS = WRITE, WAIT = NO_WAIT:
QUERY_TYPE = DSQL, TIL = SNAPSHOT, ACCESS = WRITE:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = DSQL, TIL = SNAPSHOT, ACCESS = WRITE, WAIT = WAIT:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE, WAIT = NO_WAIT:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE, WAIT = WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE, WAIT = NO_WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE, WAIT = WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = DSQL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = WRITE, WAIT = NO_WAIT:
deadlock deadlock
-read conflicts with concurrent update -read conflicts with concurrent update
-concurrent transaction number is -concurrent transaction number is
@ -94,166 +151,267 @@ expected_stdout = f"""
335544336 335544336
335545096 335545096
335544878 335544878
QUERY_TYPE = PSQL_LOCAL, TIL = SERIALIZABLE, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_LOCAL, TIL = SERIALIZABLE, ACCESS = READ:
lock conflict on no wait transaction lock conflict on no wait transaction
-Acquire lock for relation (TEST) failed -Acquire lock for relation (TEST) failed
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-901 -901
335544345 335544345
335544382 335544382
335544842 335544842
QUERY_TYPE = PSQL_LOCAL, TIL = SNAPSHOT, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_LOCAL, TIL = SNAPSHOT, ACCESS = READ:
attempted update during read-only transaction attempted update during read-only transaction
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-817 -817
335544361 335544361
335544842 335544842
QUERY_TYPE = PSQL_LOCAL, TIL = SNAPSHOT, ACCESS = READ, WAIT = WAIT:
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ:
attempted update during read-only transaction attempted update during read-only transaction
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-817 -817
335544361 335544361
335544842 335544842
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ:
attempted update during read-only transaction attempted update during read-only transaction
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-817 -817
335544361 335544361
335544842 335544842
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ, WAIT = WAIT:
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = READ: attempted update during read-only transaction
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-817
335544361
335544842
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ, WAIT = NO_WAIT:
attempted update during read-only transaction
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-817
335544361
335544842
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ, WAIT = WAIT:
attempted update during read-only transaction
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-817
335544361
335544842
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = READ, WAIT = NO_WAIT:
deadlock deadlock
-read conflicts with concurrent update -read conflicts with concurrent update
-concurrent transaction number is -concurrent transaction number is
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-913 -913
335544336 335544336
335545096 335545096
335544878 335544878
335544842 335544842
QUERY_TYPE = PSQL_LOCAL, TIL = SERIALIZABLE, ACCESS = WRITE, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_LOCAL, TIL = SERIALIZABLE, ACCESS = WRITE:
lock conflict on no wait transaction lock conflict on no wait transaction
-Acquire lock for relation (TEST) failed -Acquire lock for relation (TEST) failed
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-901 -901
335544345 335544345
335544382 335544382
335544842 335544842
QUERY_TYPE = PSQL_LOCAL, TIL = SNAPSHOT, ACCESS = WRITE, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_LOCAL, TIL = SNAPSHOT, ACCESS = WRITE:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_LOCAL, TIL = SNAPSHOT, ACCESS = WRITE, WAIT = WAIT:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE, WAIT = NO_WAIT:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE, WAIT = WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE, WAIT = NO_WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE, WAIT = WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_LOCAL, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = WRITE, WAIT = NO_WAIT:
deadlock deadlock
-read conflicts with concurrent update -read conflicts with concurrent update
-concurrent transaction number is -concurrent transaction number is
-At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_LOCAL'
-913 -913
335544336 335544336
335545096 335545096
335544878 335544878
335544842 335544842
QUERY_TYPE = PSQL_REMOTE, TIL = SERIALIZABLE, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_REMOTE, TIL = SERIALIZABLE, ACCESS = READ:
Execute statement error at isc_dsql_fetch : Execute statement error at isc_dsql_fetch :
335544345 : lock conflict on no wait transaction 335544345 : lock conflict on no wait transaction
335544382 : Acquire lock for relation (TEST) failed 335544382 : Acquire lock for relation (TEST) failed
Statement : {CHECK_SQL} Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:C:/TEMP/PYTEST/TEST_nnn/TEST.FDB Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901 -901
335544926 335544926
335544842 335544842
QUERY_TYPE = PSQL_REMOTE, TIL = SNAPSHOT, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_REMOTE, TIL = SNAPSHOT, ACCESS = READ:
Execute statement error at isc_dsql_fetch : Execute statement error at isc_dsql_fetch :
335544361 : attempted update during read-only transaction 335544361 : attempted update during read-only transaction
Statement : {CHECK_SQL} Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:C:/TEMP/PYTEST/TEST_nnn/TEST.FDB Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901 -901
335544926 335544926
335544842 335544842
QUERY_TYPE = PSQL_REMOTE, TIL = SNAPSHOT, ACCESS = READ, WAIT = WAIT:
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ:
Execute statement error at isc_dsql_fetch : Execute statement error at isc_dsql_fetch :
335544361 : attempted update during read-only transaction 335544361 : attempted update during read-only transaction
Statement : {CHECK_SQL} Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:C:/TEMP/PYTEST/TEST_nnn/TEST.FDB Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901 -901
335544926 335544926
335544842 335544842
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ:
Execute statement error at isc_dsql_fetch : Execute statement error at isc_dsql_fetch :
335544361 : attempted update during read-only transaction 335544361 : attempted update during read-only transaction
Statement : {CHECK_SQL} Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:C:/TEMP/PYTEST/TEST_nnn/TEST.FDB Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901 -901
335544926 335544926
335544842 335544842
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = READ, WAIT = WAIT:
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = READ: Execute statement error at isc_dsql_fetch :
335544361 : attempted update during read-only transaction
Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901
335544926
335544842
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ, WAIT = NO_WAIT:
Execute statement error at isc_dsql_fetch :
335544361 : attempted update during read-only transaction
Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901
335544926
335544842
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = READ, WAIT = WAIT:
Execute statement error at isc_dsql_fetch :
335544361 : attempted update during read-only transaction
Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901
335544926
335544842
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = READ, WAIT = NO_WAIT:
Execute statement error at isc_dsql_fetch : Execute statement error at isc_dsql_fetch :
335544336 : deadlock 335544336 : deadlock
335545096 : read conflicts with concurrent update 335545096 : read conflicts with concurrent update
335544878 : concurrent transaction number is 335544878 : concurrent transaction number is
Statement : {CHECK_SQL} Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:C:/TEMP/PYTEST/TEST_nnn/TEST.FDB Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901 -901
335544926 335544926
335544842 335544842
QUERY_TYPE = PSQL_REMOTE, TIL = SERIALIZABLE, ACCESS = WRITE, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_REMOTE, TIL = SERIALIZABLE, ACCESS = WRITE:
Execute statement error at isc_dsql_fetch : Execute statement error at isc_dsql_fetch :
335544345 : lock conflict on no wait transaction 335544345 : lock conflict on no wait transaction
335544382 : Acquire lock for relation (TEST) failed 335544382 : Acquire lock for relation (TEST) failed
Statement : {CHECK_SQL} Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:C:/TEMP/PYTEST/TEST_nnn/TEST.FDB Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901 -901
335544926 335544926
335544842 335544842
QUERY_TYPE = PSQL_REMOTE, TIL = SNAPSHOT, ACCESS = WRITE, WAIT = NO_WAIT:
QUERY_TYPE = PSQL_REMOTE, TIL = SNAPSHOT, ACCESS = WRITE:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_REMOTE, TIL = SNAPSHOT, ACCESS = WRITE, WAIT = WAIT:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE, WAIT = NO_WAIT:
ID=2 ID=2
ID=3 ID=3
ID=4
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = WRITE: ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_READ_CONSISTENCY, ACCESS = WRITE, WAIT = WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE, WAIT = NO_WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_RECORD_VERSION, ACCESS = WRITE, WAIT = WAIT:
ID=2
ID=3
ID=4
ID=6
ID=7
ID=8
ID=10
QUERY_TYPE = PSQL_REMOTE, TIL = READ_COMMITTED_NO_RECORD_VERSION, ACCESS = WRITE, WAIT = NO_WAIT:
Execute statement error at isc_dsql_fetch : Execute statement error at isc_dsql_fetch :
335544336 : deadlock 335544336 : deadlock
335545096 : read conflicts with concurrent update 335545096 : read conflicts with concurrent update
335544878 : concurrent transaction number is 335544878 : concurrent transaction number is
Statement : {CHECK_SQL} Statement : select id from test order by id with lock skip locked
Data source : Firebird::localhost:C:/TEMP/PYTEST/TEST_nnn/TEST.FDB Data source : Firebird::localhost:
-At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE' line: 3, col: 13 -At procedure 'SP_GET_UNLOCKED_ROWS_REMOTE'
-901 -901
335544926 335544926
335544842 335544842
@ -264,6 +422,7 @@ def test_1(act: Action, capsys):
init_sql = f""" init_sql = f"""
set term ^; set term ^;
recreate table test(id int primary key, f01 int) recreate table test(id int primary key, f01 int)
-- recreate global temporary table test(id int primary key, f01 int) on commit preserve rows
^ ^
create or alter procedure sp_get_unlocked_rows_local returns(id int) as create or alter procedure sp_get_unlocked_rows_local returns(id int) as
begin begin
@ -296,38 +455,55 @@ def test_1(act: Action, capsys):
act.reset() act.reset()
tpb_isol_set = (Isolation.SERIALIZABLE, Isolation.SNAPSHOT, Isolation.READ_COMMITTED_READ_CONSISTENCY, Isolation.READ_COMMITTED_RECORD_VERSION, Isolation.READ_COMMITTED_NO_RECORD_VERSION) tpb_isol_set = (Isolation.SERIALIZABLE, Isolation.SNAPSHOT, Isolation.READ_COMMITTED_READ_CONSISTENCY, Isolation.READ_COMMITTED_RECORD_VERSION, Isolation.READ_COMMITTED_NO_RECORD_VERSION)
tpb_wait_set = (TraLockResolution.NO_WAIT,) # TraLockResolution.WAIT, tpb_wait_set = (TraLockResolution.NO_WAIT,TraLockResolution.WAIT)
tpb_mode_set = (TraAccessMode.READ, TraAccessMode.WRITE) tpb_mode_set = (TraAccessMode.READ, TraAccessMode.WRITE)
query_types_set = ('DSQL', 'PSQL_LOCAL', 'PSQL_REMOTE')
#query_types_set = ('DSQL',)
with act.db.connect() as con_rows_locker, act.db.connect() as con_free_seeker: with act.db.connect() as con_rows_locker, act.db.connect() as con_free_seeker:
con_rows_locker.execute_immediate('update test set f01 = 1 where id in (1,5,9)') con_rows_locker.execute_immediate('update test set f01 = 1 where id in (1,5,9)')
for query_type in query_types_set:
for query_type in ('DSQL', 'PSQL_LOCAL', 'PSQL_REMOTE'):
for x_mode in tpb_mode_set: for x_mode in tpb_mode_set:
for x_isol in tpb_isol_set: for x_isol in tpb_isol_set:
custom_tpb = tpb(isolation = x_isol, access_mode = x_mode, lock_timeout = 0) for x_wait in tpb_wait_set:
#custom_tpb = TPB(isolation = x_isol, access_mode = x_mode, lock_timeout = 0).get_buffer() if x_isol in (Isolation.SERIALIZABLE, Isolation.READ_COMMITTED_NO_RECORD_VERSION) and x_wait == TraLockResolution.WAIT:
tx_free_seeker = con_free_seeker.transaction_manager(custom_tpb)
cur_free_seeker = tx_free_seeker.cursor() #######################################
tx_free_seeker.begin() ### D O N O T C H E C K ###
try: #######################################
print('\n') #
print(f'QUERY_TYPE = {query_type}, TIL = {x_isol.name}, ACCESS = {x_mode.name}:') # 1. Isolation.SERIALIZABLE requires that the whole table must not be changed by anyone else.
if query_type == 'DSQL': # 2. Isolation.READ_COMMITTED_NO_RECORD_VERSION can not be used due to implementation details, see:
cur_free_seeker.execute(f'{CHECK_SQL}') # Adriano, 26-feb-2023, https://github.com/FirebirdSQL/firebird/pull/7350#issuecomment-1445408462
elif query_type == 'PSQL_LOCAL': # "WITH LOCK [SKIP LOCKED] needs a record read before, but this locked records cannot be read with NO RECORD VERSION.
cur_free_seeker.execute('select id from sp_get_unlocked_rows_local') # Considering that this transaction mode is replaced by default I would only document it as in fact I don't think
elif query_type == 'PSQL_REMOTE': # there are anything we could do."
cur_free_seeker.execute('select id from sp_get_unlocked_rows_remote')
for r in cur_free_seeker: continue
print('ID='+str(r[0]))
except DatabaseError as e: custom_tpb = tpb(isolation = x_isol, access_mode = x_mode, lock_timeout = -1 if x_wait == TraLockResolution.WAIT else 0)
print(e.__str__()) #custom_tpb = TPB(isolation = x_isol, access_mode = x_mode, lock_timeout = 0).get_buffer()
print(e.sqlcode) tx_free_seeker = con_free_seeker.transaction_manager(custom_tpb)
for g in e.gds_codes: cur_free_seeker = tx_free_seeker.cursor()
print(g) tx_free_seeker.begin()
finally: try:
tx_free_seeker.rollback() print('\n')
print(f'QUERY_TYPE = {query_type}, TIL = {x_isol.name}, ACCESS = {x_mode.name}, WAIT = {x_wait.name}:')
if query_type == 'DSQL':
cur_free_seeker.execute(f'{CHECK_SQL}')
elif query_type == 'PSQL_LOCAL':
cur_free_seeker.execute('select id from sp_get_unlocked_rows_local')
elif query_type == 'PSQL_REMOTE':
cur_free_seeker.execute('select id from sp_get_unlocked_rows_remote')
for r in cur_free_seeker:
print('ID='+str(r[0]))
except DatabaseError as e:
print(e.__str__())
print(e.sqlcode)
for g in e.gds_codes:
print(g)
finally:
tx_free_seeker.rollback()
act.expected_stdout = expected_stdout act.expected_stdout = expected_stdout
act.stdout = capsys.readouterr().out act.stdout = capsys.readouterr().out