Changeset: 6bfc51fb1fb9 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=6bfc51fb1fb9
Modified Files:
        
sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.sql
        
sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.stable.out
Branch: default
Log Message:

Reworked crash_correlated_subqueries_in_select.Bug-6254 test. Don't use system 
tables on regular tests, because their contents change between release, thus 
requiring a reapproval


diffs (truncated from 470 to 300 lines):

diff --git 
a/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.sql
 
b/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.sql
--- 
a/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.sql
+++ 
b/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.sql
@@ -1,7 +1,210 @@
+START TRANSACTION;
+CREATE TABLE "myschemas" (
+       "id"            INTEGER,
+       "name"          VARCHAR(1024),
+       "authorization" INTEGER,
+       "owner"         INTEGER,
+       "system"        BOOLEAN
+);
+COPY 7 RECORDS INTO "myschemas" FROM stdin USING DELIMITERS E'\t',E'\n','"';
+2000   "sys"   2       3       true
+2114   "tmp"   2       3       true
+8824   "json"  3       3       true
+8928   "profiler"      3       3       true
+9027   "wlc"   3       3       true
+9046   "wlr"   3       3       true
+9398   "logging"       3       3       true
+
+CREATE TABLE "mytables" (
+       "id"            INTEGER,
+       "name"          VARCHAR(1024),
+       "schema_id"     INTEGER,
+       "query"         VARCHAR(1048576),
+       "type"          SMALLINT,
+       "system"        BOOLEAN,
+       "commit_action" SMALLINT,
+       "access"        SMALLINT
+);
+COPY 68 RECORDS INTO "mytables" FROM stdin USING DELIMITERS E'\t',E'\n','"';
+2001   "schemas"       2000    NULL    0       true    0       0
+2007   "types" 2000    NULL    0       true    0       0
+2016   "functions"     2000    NULL    0       true    0       0
+2028   "args"  2000    NULL    0       true    0       0
+2037   "sequences"     2000    NULL    0       true    0       0
+2047   "table_partitions"      2000    NULL    0       true    0       0
+2053   "range_partitions"      2000    NULL    0       true    0       0
+2059   "value_partitions"      2000    NULL    0       true    0       0
+2063   "dependencies"  2000    NULL    0       true    0       0
+2067   "_tables"       2000    NULL    0       true    0       0
+2076   "_columns"      2000    NULL    0       true    0       0
+2087   "keys"  2000    NULL    0       true    0       0
+2094   "idxs"  2000    NULL    0       true    0       0
+2099   "triggers"      2000    NULL    0       true    0       0
+2110   "objects"       2000    NULL    0       true    0       0
+2115   "_tables"       2114    NULL    0       true    2       0
+2124   "_columns"      2114    NULL    0       true    2       0
+2135   "keys"  2114    NULL    0       true    2       0
+2142   "idxs"  2114    NULL    0       true    2       0
+2147   "triggers"      2114    NULL    0       true    2       0
+2158   "objects"       2114    NULL    0       true    2       0
+6530   "tables"        2000    "SELECT ""id"", ""name"", ""schema_id"", 
""query"", CAST(CASE WHEN ""system"" THEN ""type"" + 10 /* system table/view */ 
ELSE (CASE WHEN ""commit_action"" = 0 THEN ""type"" /* table/view */ ELSE 
""type"" + 20 /* global temp table */ END) END AS SMALLINT) AS ""type"", 
""system"", ""commit_action"", ""access"", CASE WHEN (NOT ""system"" AND 
""commit_action"" > 0) THEN 1 ELSE 0 END AS ""temporary"" FROM 
""sys"".""_tables"" WHERE ""type"" <> 2 UNION ALL SELECT ""id"", ""name"", 
""schema_id"", ""query"", CAST(""type"" + 30 /* local temp table */ AS 
SMALLINT) AS ""type"", ""system"", ""commit_action"", ""access"", 1 AS 
""temporary"" FROM ""tmp"".""_tables"";"   1       true    0       0
+6540   "columns"       2000    "SELECT * FROM (SELECT p.* FROM 
""sys"".""_columns"" AS p UNION ALL SELECT t.* FROM ""tmp"".""_columns"" AS t) 
AS columns;"     1       true    0       0
+6556   "comments"      2000    NULL    0       true    0       0
+6561   "db_user_info"  2000    NULL    0       true    0       0
+6567   "users" 2000    "SELECT u.""name"" AS ""name"", ui.""fullname"", 
ui.""default_schema"" FROM db_users() AS u LEFT JOIN ""sys"".""db_user_info"" 
AS ui ON u.""name"" = ui.""name"";"      1       true    0       0
+6571   "user_role"     2000    NULL    0       true    0       0
+6574   "auths" 2000    NULL    0       true    0       0
+6578   "privileges"    2000    NULL    0       true    0       0
+6798   "querylog_catalog"      2000    "create view sys.querylog_catalog as 
select * from sys.querylog_catalog();"     1       true    0       0
+6809   "querylog_calls"        2000    "create view sys.querylog_calls as 
select * from sys.querylog_calls();" 1       true    0       0
+6827   "querylog_history"      2000    "create view sys.querylog_history 
as\nselect qd.*, ql.""start"",ql.""stop"", ql.arguments, ql.tuples, ql.run, 
ql.ship, ql.cpu, ql.io\nfrom sys.querylog_catalog() qd, sys.querylog_calls() 
ql\nwhere qd.id = ql.id and qd.owner = user;"        1       true    0       0
+6844   "tracelog"      2000    "create view sys.tracelog as select * from 
sys.tracelog();"     1       true    0       0
+6896   "ids"   2000    "create view sys.ids (id, name, schema_id, table_id, 
table_name, obj_type, sys_table) as\nselect id, name, cast(null as int) as 
schema_id, cast(null as int) as table_id, cast(null as varchar(124)) as 
table_name, 'author' as obj_type, 'sys.auths' as sys_table from sys.auths union 
all\nselect id, name, cast(null as int) as schema_id, cast(null as int) as 
table_id, cast(null as varchar(124)) as table_name, 'schema', 'sys.schemas' 
from sys.schemas union all\nselect id, name, schema_id, id as table_id, name as 
table_name, case when type = 1 then 'view' else 'table' end, 'sys._tables' from 
sys._tables union all\nselect id, name, schema_id, id as table_id, name as 
table_name, case when type = 1 then 'view' else 'table' end, 'tmp._tables' from 
tmp._tables union all\nselect c.id, c.name, t.schema_id, c.table_id, t.name as 
table_name, 'column', 'sys._columns' from sys._columns c join sys._tables t on 
c.table_id = t.id union all\nselect c.id, c.name, t.schema_id, c.table_id, t.
 name as table_name, 'column', 'tmp._columns' from tmp._columns c join 
tmp._tables t on c.table_id = t.id union all\nselect k.id, k.name, t.schema_id, 
k.table_id, t.name as table_name, 'key', 'sys.keys' from sys.keys k join 
sys._tables t on k.table_id = t.id union all\nselect k.id, k.name, t.schema_id, 
k.table_id, t.name as table_name, 'key', 'tmp.keys' from tmp.keys k join 
tmp._tables t on k.table_id = t.id union all\nselect i.id, i.name, t.schema_id, 
i.table_id, t.name as table_name, 'index', 'sys.idxs' from sys.idxs i join 
sys._tables t on i.table_id = t.id union all\nselect i.id, i.name, t.schema_id, 
i.table_id, t.name as table_name, 'index', 'tmp.idxs' from tmp.idxs i join 
tmp._tables t on i.table_id = t.id union all\nselect g.id, g.name, t.schema_id, 
g.table_id, t.name as table_name, 'trigger', 'sys.triggers' from sys.triggers g 
join sys._tables t on g.table_id = t.id union all\nselect g.id, g.name, 
t.schema_id, g.table_id, t.name as table_name, 'trigger', 'tmp.triggers' from t
 mp.triggers g join tmp._tables t on g.table_id = t.id union all\nselect id, 
name, schema_id, cast(null as int) as table_id, cast(null as varchar(124)) as 
table_name, case when type = 2 then 'procedure' else 'function' end, 
'sys.functions' from sys.functions union all\nselect a.id, a.name, f.schema_id, 
cast(null as int) as table_id, cast(null as varchar(124)) as table_name, case 
when f.type = 2 then 'procedure arg' else 'function arg' end, 'sys.args' from 
sys.args a join sys.functions f on a.func_id = f.id union all\nselect id, name, 
schema_id, cast(null as int) as table_id, cast(null as varchar(124)) as 
table_name, 'sequence', 'sys.sequences' from sys.sequences union all\nselect 
id, sqlname, schema_id, cast(null as int) as table_id, cast(null as 
varchar(124)) as table_name, 'type', 'sys.types' from sys.types where id > 2000 
\n order by id;"   1       true    0       0
+6904   "dependency_types"      2000    NULL    0       true    0       1
+7177   "sessions"      2000    "create view sys.sessions as select * from 
sys.sessions();"     1       true    0       0
+7249   "prepared_statements"   2000    "create view sys.prepared_statements as 
select * from sys.prepared_statements();"       1       true    0       0
+7271   "prepared_statements_args"      2000    "create view 
sys.prepared_statements_args as select * from sys.prepared_statements_args();"  
   1       true    0       0
+7322   "optimizers"    2000    "create view sys.optimizers as select * from 
sys.optimizers();" 1       true    0       0
+7326   "environment"   2000    "create view sys.environment as select * from 
sys.env();"       1       true    0       0
+7430   "queue" 2000    "create view sys.queue as select * from sys.queue();"   
1       true    0       0
+7478   "rejects"       2000    "create view sys.rejects as select * from 
sys.rejects();"       1       true    0       0
+8249   "spatial_ref_sys"       2000    NULL    0       true    0       0
+8258   "geometry_columns"      2000    "create view sys.geometry_columns as\n 
select cast(null as varchar(1)) as f_table_catalog,\n s.name as 
f_table_schema,\n t.name as f_table_name,\n c.name as f_geometry_column,\n 
cast(has_z(c.type_digits) + has_m(c.type_digits) +2 as integer) as 
coord_dimension,\n c.type_scale as srid,\n get_type(c.type_digits, 0) as type\n 
from sys.columns c, sys.tables t, sys.schemas s\n where c.table_id = t.id and 
t.schema_id = s.id\n and c.type in (select sqlname from sys.types where 
systemname in ('wkb', 'wkba'));"     1       true    0       0
+8946   "keywords"      2000    NULL    0       true    0       1
+8954   "table_types"   2000    NULL    0       true    0       1
+8963   "function_types"        2000    NULL    0       true    0       1
+8972   "function_languages"    2000    NULL    0       true    0       1
+8980   "key_types"     2000    NULL    0       true    0       1
+8988   "index_types"   2000    NULL    0       true    0       1
+8996   "privilege_codes"       2000    NULL    0       true    0       1
+9001   "roles" 2000    "create view sys.roles as select id, name, grantor from 
sys.auths a where a.name not in (select u.name from sys.db_users() u);" 1       
true    0       0
+9005   "var_values"    2000    "create view sys.var_values (var_name, value) 
as\nselect 'cache' as var_name, convert(cache, varchar(10)) as value union 
all\nselect 'current_role', current_role union all\nselect 'current_schema', 
current_schema union all\nselect 'current_timezone', current_timezone union 
all\nselect 'current_user', current_user union all\nselect 'debug', debug union 
all\nselect 'last_id', last_id union all\nselect 'optimizer', optimizer union 
all\nselect 'pi', pi() union all\nselect 'rowcnt', rowcnt;"     1       true    
0       0
+9096   "netcdf_files"  2000    NULL    0       true    0       0
+9102   "netcdf_dims"   2000    NULL    0       true    0       0
+9110   "netcdf_vars"   2000    NULL    0       true    0       0
+9116   "netcdf_vardim" 2000    NULL    0       true    0       0
+9124   "netcdf_attrs"  2000    NULL    0       true    0       0
+9190   "storage"       2000    "create view sys.""storage"" as\nselect * from 
sys.""storage""()\n where (""schema"", ""table"") in (\n select sch.""name"", 
tbl.""name""\n from sys.""tables"" as tbl join sys.""schemas"" as sch on 
tbl.schema_id = sch.id\n where tbl.""system"" = false)\norder by ""schema"", 
""table"", ""column"";"      1       true    0       0
+9201   "tablestorage"  2000    "create view sys.""tablestorage"" as\nselect 
""schema"", ""table"",\n max(""count"") as ""rowcount"",\n count(*) as 
""storages"",\n sum(columnsize) as columnsize,\n sum(heapsize) as heapsize,\n 
sum(hashes) as hashsize,\n sum(""imprints"") as imprintsize,\n sum(orderidx) as 
orderidxsize\n from sys.""storage""\ngroup by ""schema"", ""table""\norder by 
""schema"", ""table"";" 1       true    0       0
+9210   "schemastorage" 2000    "create view sys.""schemastorage"" as\nselect 
""schema"",\n count(*) as ""storages"",\n sum(columnsize) as columnsize,\n 
sum(heapsize) as heapsize,\n sum(hashes) as hashsize,\n sum(""imprints"") as 
imprintsize,\n sum(orderidx) as orderidxsize\n from sys.""storage""\ngroup by 
""schema""\norder by ""schema"";"   1       true    0       0
+9287   "storagemodelinput"     2000    NULL    0       true    0       0
+9326   "storagemodel"  2000    "create view sys.storagemodel as\nselect 
""schema"", ""table"", ""column"", ""type"", ""count"",\n 
sys.columnsize(""type"", ""count"") as columnsize,\n sys.heapsize(""type"", 
""count"", ""distinct"", ""atomwidth"") as heapsize,\n 
sys.hashsize(""reference"", ""count"") as hashsize,\n case when isacolumn then 
sys.imprintsize(""type"", ""count"") else 0 end as imprintsize,\n case when 
(isacolumn and not sorted) then cast(8 * ""count"" as bigint) else 0 end as 
orderidxsize,\n sorted, ""unique"", isacolumn\n from 
sys.storagemodelinput\norder by ""schema"", ""table"", ""column"";"   1       
true    0       0
+9337   "tablestoragemodel"     2000    "create view sys.tablestoragemodel 
as\nselect ""schema"", ""table"",\n max(""count"") as ""rowcount"",\n count(*) 
as ""storages"",\n sum(sys.columnsize(""type"", ""count"")) as columnsize,\n 
sum(sys.heapsize(""type"", ""count"", ""distinct"", ""atomwidth"")) as 
heapsize,\n sum(sys.hashsize(""reference"", ""count"")) as hashsize,\n sum(case 
when isacolumn then sys.imprintsize(""type"", ""count"") else 0 end) as 
imprintsize,\n sum(case when (isacolumn and not sorted) then cast(8 * ""count"" 
as bigint) else 0 end) as orderidxsize\n from sys.storagemodelinput\ngroup by 
""schema"", ""table""\norder by ""schema"", ""table"";"     1       true    0   
    0
+9351   "statistics"    2000    NULL    0       true    0       0
+9434   "compinfo"      9398    "create view logging.compinfo as select * from 
logging.compinfo();"     1       true    0       0
+9518   "systemfunctions"       2000    "create view sys.systemfunctions as 
select id as function_id from sys.functions where system;"  1       true    0   
    0
+9521   "analytics"     2000    "create table analytics(col1 int);"     0       
false   0       0
+
+CREATE TABLE "mycolumns" (
+       "id"          INTEGER,
+       "name"        VARCHAR(1024),
+       "type"        VARCHAR(1024),
+       "type_digits" INTEGER,
+       "type_scale"  INTEGER,
+       "table_id"    INTEGER,
+       "default"     VARCHAR(2048),
+       "null"        BOOLEAN,
+       "number"      INTEGER,
+       "storage"     VARCHAR(2048)
+);
+COPY 92 RECORDS INTO "mycolumns" FROM stdin USING DELIMITERS E'\t',E'\n','"';
+2002   "id"    "int"   32      0       2001    NULL    true    0       NULL
+2003   "name"  "varchar"       1024    0       2001    NULL    true    1       
NULL
+2004   "authorization" "int"   32      0       2001    NULL    true    2       
NULL
+2005   "owner" "int"   32      0       2001    NULL    true    3       NULL
+2006   "system"        "boolean"       1       0       2001    NULL    true    
4       NULL
+2008   "id"    "int"   32      0       2007    NULL    true    0       NULL
+2009   "systemname"    "varchar"       256     0       2007    NULL    true    
1       NULL
+2010   "sqlname"       "varchar"       1024    0       2007    NULL    true    
2       NULL
+2011   "digits"        "int"   32      0       2007    NULL    true    3       
NULL
+2012   "scale" "int"   32      0       2007    NULL    true    4       NULL
+2013   "radix" "int"   32      0       2007    NULL    true    5       NULL
+2014   "eclass"        "int"   32      0       2007    NULL    true    6       
NULL
+2015   "schema_id"     "int"   32      0       2007    NULL    true    7       
NULL
+2017   "id"    "int"   32      0       2016    NULL    true    0       NULL
+2018   "name"  "varchar"       256     0       2016    NULL    true    1       
NULL
+2019   "func"  "varchar"       8196    0       2016    NULL    true    2       
NULL
+2020   "mod"   "varchar"       8196    0       2016    NULL    true    3       
NULL
+2021   "language"      "int"   32      0       2016    NULL    true    4       
NULL
+2022   "type"  "int"   32      0       2016    NULL    true    5       NULL
+2023   "side_effect"   "boolean"       1       0       2016    NULL    true    
6       NULL
+2024   "varres"        "boolean"       1       0       2016    NULL    true    
7       NULL
+2025   "vararg"        "boolean"       1       0       2016    NULL    true    
8       NULL
+2026   "schema_id"     "int"   32      0       2016    NULL    true    9       
NULL
+2027   "system"        "boolean"       1       0       2016    NULL    true    
10      NULL
+2029   "id"    "int"   32      0       2028    NULL    true    0       NULL
+2030   "func_id"       "int"   32      0       2028    NULL    true    1       
NULL
+2031   "name"  "varchar"       256     0       2028    NULL    true    2       
NULL
+2032   "type"  "varchar"       1024    0       2028    NULL    true    3       
NULL
+2033   "type_digits"   "int"   32      0       2028    NULL    true    4       
NULL
+2034   "type_scale"    "int"   32      0       2028    NULL    true    5       
NULL
+2035   "inout" "tinyint"       8       0       2028    NULL    true    6       
NULL
+2036   "number"        "int"   32      0       2028    NULL    true    7       
NULL
+2038   "id"    "int"   32      0       2037    NULL    true    0       NULL
+2039   "schema_id"     "int"   32      0       2037    NULL    true    1       
NULL
+2040   "name"  "varchar"       256     0       2037    NULL    true    2       
NULL
+2041   "start" "bigint"        64      0       2037    NULL    true    3       
NULL
+2042   "minvalue"      "bigint"        64      0       2037    NULL    true    
4       NULL
+2043   "maxvalue"      "bigint"        64      0       2037    NULL    true    
5       NULL
+2044   "increment"     "bigint"        64      0       2037    NULL    true    
6       NULL
+2045   "cacheinc"      "bigint"        64      0       2037    NULL    true    
7       NULL
+2046   "cycle" "boolean"       1       0       2037    NULL    true    8       
NULL
+2048   "id"    "int"   32      0       2047    NULL    true    0       NULL
+2049   "table_id"      "int"   32      0       2047    NULL    true    1       
NULL
+2050   "column_id"     "int"   32      0       2047    NULL    true    2       
NULL
+2051   "expression"    "varchar"       2048    0       2047    NULL    true    
3       NULL
+2052   "type"  "tinyint"       8       0       2047    NULL    true    4       
NULL
+2054   "table_id"      "int"   32      0       2053    NULL    true    0       
NULL
+2055   "partition_id"  "int"   32      0       2053    NULL    true    1       
NULL
+2056   "minimum"       "varchar"       2048    0       2053    NULL    true    
2       NULL
+2057   "maximum"       "varchar"       2048    0       2053    NULL    true    
3       NULL
+2058   "with_nulls"    "boolean"       1       0       2053    NULL    true    
4       NULL
+2060   "table_id"      "int"   32      0       2059    NULL    true    0       
NULL
+2061   "partition_id"  "int"   32      0       2059    NULL    true    1       
NULL
+2062   "value" "varchar"       2048    0       2059    NULL    true    2       
NULL
+2064   "id"    "int"   32      0       2063    NULL    true    0       NULL
+2065   "depend_id"     "int"   32      0       2063    NULL    true    1       
NULL
+2066   "depend_type"   "smallint"      16      0       2063    NULL    true    
2       NULL
+2068   "id"    "int"   32      0       2067    NULL    true    0       NULL
+2069   "name"  "varchar"       1024    0       2067    NULL    true    1       
NULL
+2070   "schema_id"     "int"   32      0       2067    NULL    true    2       
NULL
+2071   "query" "varchar"       1048576 0       2067    NULL    true    3       
NULL
+2072   "type"  "smallint"      16      0       2067    NULL    true    4       
NULL
+2073   "system"        "boolean"       1       0       2067    NULL    true    
5       NULL
+2074   "commit_action" "smallint"      16      0       2067    NULL    true    
6       NULL
+2075   "access"        "smallint"      16      0       2067    NULL    true    
7       NULL
+2077   "id"    "int"   32      0       2076    NULL    true    0       NULL
+2078   "name"  "varchar"       1024    0       2076    NULL    true    1       
NULL
+2079   "type"  "varchar"       1024    0       2076    NULL    true    2       
NULL
+2080   "type_digits"   "int"   32      0       2076    NULL    true    3       
NULL
+2081   "type_scale"    "int"   32      0       2076    NULL    true    4       
NULL
+2082   "table_id"      "int"   32      0       2076    NULL    true    5       
NULL
+2083   "default"       "varchar"       2048    0       2076    NULL    true    
6       NULL
+2084   "null"  "boolean"       1       0       2076    NULL    true    7       
NULL
+2085   "number"        "int"   32      0       2076    NULL    true    8       
NULL
+2086   "storage"       "varchar"       2048    0       2076    NULL    true    
9       NULL
+2088   "id"    "int"   32      0       2087    NULL    true    0       NULL
+2089   "table_id"      "int"   32      0       2087    NULL    true    1       
NULL
+2090   "type"  "int"   32      0       2087    NULL    true    2       NULL
+2091   "name"  "varchar"       1024    0       2087    NULL    true    3       
NULL
+2092   "rkey"  "int"   32      0       2087    NULL    true    4       NULL
+2093   "action"        "int"   32      0       2087    NULL    true    5       
NULL
+2095   "id"    "int"   32      0       2094    NULL    true    0       NULL
+2096   "table_id"      "int"   32      0       2094    NULL    true    1       
NULL
+2097   "type"  "int"   32      0       2094    NULL    true    2       NULL
+2098   "name"  "varchar"       1024    0       2094    NULL    true    3       
NULL
+2100   "id"    "int"   32      0       2099    NULL    true    0       NULL
+2101   "name"  "varchar"       1024    0       2099    NULL    true    1       
NULL
+2102   "table_id"      "int"   32      0       2099    NULL    true    2       
NULL
+2103   "time"  "smallint"      16      0       2099    NULL    true    3       
NULL
+2104   "orientation"   "smallint"      16      0       2099    NULL    true    
4       NULL
+2105   "event" "smallint"      16      0       2099    NULL    true    5       
NULL
+9520   "col1"  "int"   32      0       9521    NULL    true    0       NULL
+
 CREATE VIEW sys.view_stats AS
 SELECT s.name AS schema_nm, s.id AS schema_id, t.name AS table_nm, /* t.id AS 
table_id, */ t.system AS is_system_view
-, (SELECT CAST(COUNT(*) as int) FROM sys.columns c WHERE c.table_id = t.id) AS 
"# columns"
- FROM sys.tables t JOIN sys.schemas s ON t.schema_id = s.id
+, (SELECT CAST(COUNT(*) as int) FROM mycolumns c WHERE c.table_id = t.id) AS 
"# columns"
+ FROM mytables t JOIN myschemas s ON t.schema_id = s.id
 WHERE query IS NOT NULL
   AND t.name <> 'geometry_columns'
 ; --ORDER BY s.name, t.name;
@@ -13,5 +216,4 @@ SELECT * FROM sys.view_stats WHERE is_sy
 SELECT * FROM sys.view_stats WHERE NOT is_system_view;
 -- crash
 
-DROP VIEW sys.view_stats;
-
+ROLLBACK;
diff --git 
a/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.stable.out
 
b/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.stable.out
--- 
a/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.stable.out
+++ 
b/sql/test/BugTracker-2017/Tests/crash_correlated_subqueries_in_select.Bug-6254.stable.out
@@ -26,6 +26,70 @@ stdout of test 'crash_correlated_subquer
 # 10:01:40 >  "mclient" "-lsql" "-ftest" "-Eutf-8" "-i" "-e" 
"--host=/var/tmp/mtest-24581" "--port=30412"
 # 10:01:40 >  
 
+#START TRANSACTION;
+#CREATE TABLE "myschemas" (
+#      "id"            INTEGER,
+#      "name"          VARCHAR(1024),
+#      "authorization" INTEGER,
+#      "owner"         INTEGER,
+#      "system"        BOOLEAN
+#);
+#COPY 7 RECORDS INTO "myschemas" FROM stdin USING DELIMITERS E'\t',E'\n','"';
+#2000  "sys"   2       3       true
+#2114  "tmp"   2       3       true
+#8824  "json"  3       3       true
+#8928  "profiler"      3       3       true
+#9027  "wlc"   3       3       true
+#9046  "wlr"   3       3       true
+#9398  "logging"       3       3       true
+[ 7    ]
+#CREATE TABLE "mytables" (
+#      "id"            INTEGER,
+#      "name"          VARCHAR(1024),
+#      "schema_id"     INTEGER,
+#      "query"         VARCHAR(1048576),
+#      "type"          SMALLINT,
+#      "system"        BOOLEAN,
+#      "commit_action" SMALLINT,
+#      "access"        SMALLINT
+#);
+#COPY 68 RECORDS INTO "mytables" FROM stdin USING DELIMITERS E'\t',E'\n','"';
+#2001  "schemas"       2000    NULL    0       true    0       0
+#2007  "types" 2000    NULL    0       true    0       0
+#2016  "functions"     2000    NULL    0       true    0       0
+#2028  "args"  2000    NULL    0       true    0       0
+#2037  "sequences"     2000    NULL    0       true    0       0
+#2047  "table_partitions"      2000    NULL    0       true    0       0
+#2053  "range_partitions"      2000    NULL    0       true    0       0
+#2059  "value_partitions"      2000    NULL    0       true    0       0
+#2063  "dependencies"  2000    NULL    0       true    0       0
+#2067  "_tables"       2000    NULL    0       true    0       0
+#2076  "_columns"      2000    NULL    0       true    0       0
+#2087  "keys"  2000    NULL    0       true    0       0
+[ 68   ]
+#CREATE TABLE "mycolumns" (
+#      "id"          INTEGER,
+#      "name"        VARCHAR(1024),
+#      "type"        VARCHAR(1024),
+#      "type_digits" INTEGER,
+#      "type_scale"  INTEGER,
+#      "table_id"    INTEGER,
+#      "default"     VARCHAR(2048),
+#      "null"        BOOLEAN,
+#      "number"      INTEGER,
+#      "storage"     VARCHAR(2048)
+#);
+#COPY 92 RECORDS INTO "mycolumns" FROM stdin USING DELIMITERS E'\t',E'\n','"';
+#2002  "id"    "int"   32      0       2001    NULL    true    0       NULL
+#2003  "name"  "varchar"       1024    0       2001    NULL    true    1       
NULL
+#2004  "authorization" "int"   32      0       2001    NULL    true    2       
NULL
+#2005  "owner" "int"   32      0       2001    NULL    true    3       NULL
+#2006  "system"        "boolean"       1       0       2001    NULL    true    
4       NULL
+#2008  "id"    "int"   32      0       2007    NULL    true    0       NULL
+#2009  "systemname"    "varchar"       256     0       2007    NULL    true    
1       NULL
+#2010  "sqlname"       "varchar"       1024    0       2007    NULL    true    
2       NULL
+#2011  "digits"        "int"   32      0       2007    NULL    true    3       
NULL
+[ 92   ]
 #CREATE VIEW sys.view_stats AS
 #SELECT s.name AS schema_nm, s.id AS schema_id, t.name AS table_nm, /* t.id AS 
table_id, */ t.system AS is_system_view
 #, (SELECT CAST(COUNT(*) as int) FROM sys.columns c WHERE c.table_id = t.id) 
AS "# columns"
@@ -37,118 +101,68 @@ stdout of test 'crash_correlated_subquer
 % .view_stats, .view_stats,    .view_stats,    .view_stats,    .view_stats # 
table_name
 % schema_nm,   schema_id,      table_nm,       is_system_view, "# columns" # 
name
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