2021-04-26 20:07:00 +02:00
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#coding:utf-8
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#
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# id: bugs.core_2176
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# title: Unexpected (wrong) results with COALESCE and GROUP BY
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# decription:
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# tracker_id: CORE-2176
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# min_versions: []
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# versions: 2.5.0
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# qmid: None
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import pytest
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from firebird.qa import db_factory, isql_act, Action
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# version: 2.5.0
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# resources: None
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substitutions_1 = []
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init_script_1 = """"""
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db_1 = db_factory(page_size=4096, sql_dialect=3, init=init_script_1)
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test_script_1 = """
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create or alter view v_rel (rid, rnm, rty) as
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select r.rdb$relation_id, r.rdb$relation_name, r.rdb$relation_type
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from rdb$relations r
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where r.rdb$relation_id <= 30 -- ::: NB ::: added this cond because number of rows in 2.5 and 3.0 differ!
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;
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commit;
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set count on ;
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set list on;
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select rid as c from v_rel
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group by 1 ;
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-- correct result
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select * from (
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select rid as c from v_rel
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) group by 1 ;
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-- also correct
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select coalesce(rid, 0) as c from v_rel
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group by 1 ;
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-- ERROR: no zero ID is reported, the last ID is reported twice
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select * from (
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select coalesce(rid, 0) as c from v_rel
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) group by 1 ;
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-- ERROR: single NULL is returned
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select * from (
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select coalesce(rid, 0) as a, coalesce(rty, 0) as b from v_rel
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) group by 1, 2 ;
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-- ERROR: infinite result set with all zero values
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select * from (
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select coalesce(rid, 0) as a, coalesce(rnm, '') as b from v_rel
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) group by 1, 2 ;
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-- ERROR: conversion error
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"""
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act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """
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C 0
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C 1
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C 2
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C 3
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C 4
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C 5
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C 6
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C 7
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C 8
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C 9
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C 10
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C 11
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C 12
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C 13
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C 14
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C 15
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C 16
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C 28
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C 29
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C 30
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Records affected: 31
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C 0
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C 1
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C 2
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C 3
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C 10
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C 11
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C 12
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C 13
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C 14
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C 15
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C 27
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C 28
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C 29
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C 30
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Records affected: 31
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C 0
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C 1
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C 2
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C 3
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C 10
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C 11
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C 12
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C 13
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C 14
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C 15
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C 16
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C 27
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C 28
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C 29
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C 30
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Records affected: 31
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C 0
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C 1
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C 11
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C 12
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C 13
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C 14
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C 15
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C 28
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C 29
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C 30
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Records affected: 31
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A 0
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B 0
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A 1
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B 0
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A 2
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B 0
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A 3
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B 0
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A 4
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B 0
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A 5
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B 0
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A 6
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B 0
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A 7
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B 0
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A 8
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B 0
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A 9
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B 0
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A 10
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B 0
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A 11
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B 0
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A 12
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B 0
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A 13
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B 0
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A 14
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B 0
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A 15
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B 0
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A 16
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B 0
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A 17
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B 0
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A 18
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B 0
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A 19
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B 0
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A 20
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B 0
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A 21
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B 0
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A 22
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B 0
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A 23
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B 0
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A 24
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B 0
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A 25
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B 0
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A 26
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B 0
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A 27
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B 0
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A 28
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B 0
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A 29
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B 0
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A 30
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B 0
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Records affected: 31
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A 0
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B RDB$PAGES
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A 1
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B RDB$DATABASE
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A 2
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B RDB$FIELDS
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A 3
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B RDB$INDEX_SEGMENTS
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A 4
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B RDB$INDICES
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A 5
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B RDB$RELATION_FIELDS
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A 6
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B RDB$RELATIONS
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A 7
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B RDB$VIEW_RELATIONS
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A 8
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B RDB$FORMATS
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A 9
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B RDB$SECURITY_CLASSES
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A 10
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B RDB$FILES
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A 11
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B RDB$TYPES
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A 12
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B RDB$TRIGGERS
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A 13
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B RDB$DEPENDENCIES
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A 14
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B RDB$FUNCTIONS
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A 15
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B RDB$FUNCTION_ARGUMENTS
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A 16
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B RDB$FILTERS
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A 17
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B RDB$TRIGGER_MESSAGES
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A 18
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B RDB$USER_PRIVILEGES
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A 19
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B RDB$TRANSACTIONS
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A 20
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B RDB$GENERATORS
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A 21
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B RDB$FIELD_DIMENSIONS
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A 22
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B RDB$RELATION_CONSTRAINTS
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A 23
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B RDB$REF_CONSTRAINTS
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A 24
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B RDB$CHECK_CONSTRAINTS
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A 25
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B RDB$LOG_FILES
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A 26
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B RDB$PROCEDURES
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A 27
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B RDB$PROCEDURE_PARAMETERS
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A 28
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B RDB$CHARACTER_SETS
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A 29
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B RDB$COLLATIONS
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A 30
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B RDB$EXCEPTIONS
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Records affected: 31
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"""
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@pytest.mark.version('>=2.5.0')
|
2021-04-28 12:42:11 +02:00
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|
|
def test_1(act_1: Action):
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2021-04-26 20:07:00 +02:00
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act_1.expected_stdout = expected_stdout_1
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act_1.execute()
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assert act_1.clean_expected_stdout == act_1.clean_stdout
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