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sql: unknown function: pg_terminate_backend() #35897

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maddyblue opened this issue Mar 18, 2019 · 5 comments
Closed

sql: unknown function: pg_terminate_backend() #35897

maddyblue opened this issue Mar 18, 2019 · 5 comments
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C-investigation Further steps needed to qualify. C-label will change. no-issue-activity X-stale

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@maddyblue
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This function shows up in psycopg tests. Unsure if we want to support it. See #26603.

@maddyblue maddyblue added the C-investigation Further steps needed to qualify. C-label will change. label Mar 18, 2019
@rafiss
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rafiss commented Sep 18, 2019

This is also used in pgjdbc tests

jordanlewis added a commit to jordanlewis/cockroach that referenced this issue Oct 2, 2019
The spreadsheet we discussed is unwieldy - hard to edit and impossible to keep
up to date. If we write down blacklists in code, then we can use an approach
like this to always have an up to date aggregation.

So far it seems like there's just a lot of unknowns to categorize still.

The output today:

```
=== RUN   TestBlacklists
 648: unknown                                                (unknown)
 493: cockroachdb#5807   (sql: Add support for TEMP tables)
 151: cockroachdb#17511  (sql: support stored procedures)
  86: cockroachdb#26097  (sql: make TIMETZ more pg-compatible)
  56: cockroachdb#10735  (sql: support SQL savepoints)
  55: cockroachdb#32552  (multi-dim arrays)
  55: cockroachdb#26508  (sql: restricted DDL / DML inside transactions)
  52: cockroachdb#32565  (sql: support optional TIME precision)
  39: cockroachdb#243    (roadmap: Blob storage)
  33: cockroachdb#26725  (sql: support postgres' API to handle blob storage (incl lo_creat, lo_from_bytea))
  31: cockroachdb#27793  (sql: support custom/user-defined base scalar (primitive) types)
  24: cockroachdb#12123  (sql: Can't drop and replace a table within a transaction)
  24: cockroachdb#26443  (sql: support user-defined schemas between database and table)
  20: cockroachdb#21286  (sql: Add support for geometric types)
  18: cockroachdb#6583   (sql: explicit lock syntax (SELECT FOR {SHARE,UPDATE} {skip locked,nowait}))
  17: cockroachdb#22329  (Support XA distributed transactions in CockroachDB)
  16: cockroachdb#24062  (sql: 32 bit SERIAL type)
  16: cockroachdb#30352  (roadmap:when CockroachDB  will support cursor?)
  12: cockroachdb#27791  (sql: support RANGE types)
   8: cockroachdb#40195  (pgwire: multiple active result sets (portals) not supported)
   8: cockroachdb#6130   (sql: add support for key watches with notifications of changes)
   5: Expected Failure                                       (unknown)
   5: cockroachdb#23468  (sql: support sql arrays of JSONB)
   5: cockroachdb#40854  (sql: set application_name from connection string)
   4: cockroachdb#35879  (sql: `default_transaction_read_only` should also accept 'on' and 'off')
   4: cockroachdb#32610  (sql: can't insert self reference)
   4: cockroachdb#40205  (sql: add non-trivial implementations of FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE, FOR NO KEY SHARE)
   4: cockroachdb#35897  (sql: unknown function: pg_terminate_backend())
   4: cockroachdb#4035   (sql/pgwire: missing support for row count limits in pgwire)
   3: cockroachdb#27796  (sql: support user-defined DOMAIN types)
   3: cockroachdb#3781   (sql: Add Data Type Formatting Functions)
   3: cockroachdb#40476  (sql: support `FOR {UPDATE,SHARE} {SKIP LOCKED,NOWAIT}`)
   3: cockroachdb#35882  (sql: support other character sets)
   2: cockroachdb#10028  (sql: Support view queries with star expansions)
   2: cockroachdb#35807  (sql: INTERVAL output doesn't match PG)
   2: cockroachdb#35902  (sql: large object support)
   2: cockroachdb#40474  (sql: support `SELECT ... FOR UPDATE OF` syntax)
   1: cockroachdb#18846  (sql: Support CIDR column type)
   1: cockroachdb#9682   (sql: implement computed indexes)
   1: cockroachdb#31632  (sql: FK options (deferrable, etc))
   1: cockroachdb#24897  (sql: CREATE OR REPLACE VIEW)
   1: pass?                                                  (unknown)
   1: cockroachdb#36215  (sql: enable setting standard_conforming_strings to off)
   1: cockroachdb#32562  (sql: support SET LOCAL and txn-scoped session variable changes)
   1: cockroachdb#36116  (sql: psychopg: investigate how `'infinity'::timestamp` is presented)
   1: cockroachdb#26732  (sql: support the binary operator: <int> / <float>)
   1: cockroachdb#23299  (sql: support coercing string literals to arrays)
   1: cockroachdb#36115  (sql: psychopg: investigate if datetimetz is being returned instead of datetime)
   1: cockroachdb#26925  (sql: make the CockroachDB integer types more compatible with postgres)
   1: cockroachdb#21085  (sql: WITH RECURSIVE (recursive common table expressions))
   1: cockroachdb#36179  (sql: implicity convert date to timestamp)
   1: cockroachdb#36118  (sql: Cannot parse '24:00' as type time)
   1: cockroachdb#31708  (sql: support current_time)
```

Release justification: non-production change
Release note: None
jordanlewis added a commit to jordanlewis/cockroach that referenced this issue Oct 24, 2019
The spreadsheet we discussed is unwieldy - hard to edit and impossible to keep
up to date. If we write down blacklists in code, then we can use an approach
like this to always have an up to date aggregation.

So far it seems like there's just a lot of unknowns to categorize still.

The output today:

```
=== RUN   TestBlacklists
 648: unknown                                                (unknown)
 493: cockroachdb#5807   (sql: Add support for TEMP tables)
 151: cockroachdb#17511  (sql: support stored procedures)
  86: cockroachdb#26097  (sql: make TIMETZ more pg-compatible)
  56: cockroachdb#10735  (sql: support SQL savepoints)
  55: cockroachdb#32552  (multi-dim arrays)
  55: cockroachdb#26508  (sql: restricted DDL / DML inside transactions)
  52: cockroachdb#32565  (sql: support optional TIME precision)
  39: cockroachdb#243    (roadmap: Blob storage)
  33: cockroachdb#26725  (sql: support postgres' API to handle blob storage (incl lo_creat, lo_from_bytea))
  31: cockroachdb#27793  (sql: support custom/user-defined base scalar (primitive) types)
  24: cockroachdb#12123  (sql: Can't drop and replace a table within a transaction)
  24: cockroachdb#26443  (sql: support user-defined schemas between database and table)
  20: cockroachdb#21286  (sql: Add support for geometric types)
  18: cockroachdb#6583   (sql: explicit lock syntax (SELECT FOR {SHARE,UPDATE} {skip locked,nowait}))
  17: cockroachdb#22329  (Support XA distributed transactions in CockroachDB)
  16: cockroachdb#24062  (sql: 32 bit SERIAL type)
  16: cockroachdb#30352  (roadmap:when CockroachDB  will support cursor?)
  12: cockroachdb#27791  (sql: support RANGE types)
   8: cockroachdb#40195  (pgwire: multiple active result sets (portals) not supported)
   8: cockroachdb#6130   (sql: add support for key watches with notifications of changes)
   5: Expected Failure                                       (unknown)
   5: cockroachdb#23468  (sql: support sql arrays of JSONB)
   5: cockroachdb#40854  (sql: set application_name from connection string)
   4: cockroachdb#35879  (sql: `default_transaction_read_only` should also accept 'on' and 'off')
   4: cockroachdb#32610  (sql: can't insert self reference)
   4: cockroachdb#40205  (sql: add non-trivial implementations of FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE, FOR NO KEY SHARE)
   4: cockroachdb#35897  (sql: unknown function: pg_terminate_backend())
   4: cockroachdb#4035   (sql/pgwire: missing support for row count limits in pgwire)
   3: cockroachdb#27796  (sql: support user-defined DOMAIN types)
   3: cockroachdb#3781   (sql: Add Data Type Formatting Functions)
   3: cockroachdb#40476  (sql: support `FOR {UPDATE,SHARE} {SKIP LOCKED,NOWAIT}`)
   3: cockroachdb#35882  (sql: support other character sets)
   2: cockroachdb#10028  (sql: Support view queries with star expansions)
   2: cockroachdb#35807  (sql: INTERVAL output doesn't match PG)
   2: cockroachdb#35902  (sql: large object support)
   2: cockroachdb#40474  (sql: support `SELECT ... FOR UPDATE OF` syntax)
   1: cockroachdb#18846  (sql: Support CIDR column type)
   1: cockroachdb#9682   (sql: implement computed indexes)
   1: cockroachdb#31632  (sql: FK options (deferrable, etc))
   1: cockroachdb#24897  (sql: CREATE OR REPLACE VIEW)
   1: pass?                                                  (unknown)
   1: cockroachdb#36215  (sql: enable setting standard_conforming_strings to off)
   1: cockroachdb#32562  (sql: support SET LOCAL and txn-scoped session variable changes)
   1: cockroachdb#36116  (sql: psychopg: investigate how `'infinity'::timestamp` is presented)
   1: cockroachdb#26732  (sql: support the binary operator: <int> / <float>)
   1: cockroachdb#23299  (sql: support coercing string literals to arrays)
   1: cockroachdb#36115  (sql: psychopg: investigate if datetimetz is being returned instead of datetime)
   1: cockroachdb#26925  (sql: make the CockroachDB integer types more compatible with postgres)
   1: cockroachdb#21085  (sql: WITH RECURSIVE (recursive common table expressions))
   1: cockroachdb#36179  (sql: implicity convert date to timestamp)
   1: cockroachdb#36118  (sql: Cannot parse '24:00' as type time)
   1: cockroachdb#31708  (sql: support current_time)
```

Release justification: non-production change
Release note: None
craig bot pushed a commit that referenced this issue Nov 7, 2019
41252: roachtest: add test that aggregates orm blacklist failures r=jordanlewis a=jordanlewis

The spreadsheet we discussed is unwieldy - hard to edit and impossible to keep
up to date. If we write down blacklists in code, then we can use an approach
like this to always have an up to date aggregation.

So far it seems like there's just a lot of unknowns to categorize still.

The output today:

```
=== RUN   TestBlacklists
 648: unknown                                                (unknown)
 493: #5807   (sql: Add support for TEMP tables)
 151: #17511  (sql: support stored procedures)
  86: #26097  (sql: make TIMETZ more pg-compatible)
  56: #10735  (sql: support SQL savepoints)
  55: #32552  (multi-dim arrays)
  55: #26508  (sql: restricted DDL / DML inside transactions)
  52: #32565  (sql: support optional TIME precision)
  39: #243    (roadmap: Blob storage)
  33: #26725  (sql: support postgres' API to handle blob storage (incl lo_creat, lo_from_bytea))
  31: #27793  (sql: support custom/user-defined base scalar (primitive) types)
  24: #12123  (sql: Can't drop and replace a table within a transaction)
  24: #26443  (sql: support user-defined schemas between database and table)
  20: #21286  (sql: Add support for geometric types)
  18: #6583   (sql: explicit lock syntax (SELECT FOR {SHARE,UPDATE} {skip locked,nowait}))
  17: #22329  (Support XA distributed transactions in CockroachDB)
  16: #24062  (sql: 32 bit SERIAL type)
  16: #30352  (roadmap:when CockroachDB  will support cursor?)
  12: #27791  (sql: support RANGE types)
   8: #40195  (pgwire: multiple active result sets (portals) not supported)
   8: #6130   (sql: add support for key watches with notifications of changes)
   5: Expected Failure                                       (unknown)
   5: #23468  (sql: support sql arrays of JSONB)
   5: #40854  (sql: set application_name from connection string)
   4: #35879  (sql: `default_transaction_read_only` should also accept 'on' and 'off')
   4: #32610  (sql: can't insert self reference)
   4: #40205  (sql: add non-trivial implementations of FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE, FOR NO KEY SHARE)
   4: #35897  (sql: unknown function: pg_terminate_backend())
   4: #4035   (sql/pgwire: missing support for row count limits in pgwire)
   3: #27796  (sql: support user-defined DOMAIN types)
   3: #3781   (sql: Add Data Type Formatting Functions)
   3: #40476  (sql: support `FOR {UPDATE,SHARE} {SKIP LOCKED,NOWAIT}`)
   3: #35882  (sql: support other character sets)
   2: #10028  (sql: Support view queries with star expansions)
   2: #35807  (sql: INTERVAL output doesn't match PG)
   2: #35902  (sql: large object support)
   2: #40474  (sql: support `SELECT ... FOR UPDATE OF` syntax)
   1: #18846  (sql: Support CIDR column type)
   1: #9682   (sql: implement computed indexes)
   1: #31632  (sql: FK options (deferrable, etc))
   1: #24897  (sql: CREATE OR REPLACE VIEW)
   1: pass?                                                  (unknown)
   1: #36215  (sql: enable setting standard_conforming_strings to off)
   1: #32562  (sql: support SET LOCAL and txn-scoped session variable changes)
   1: #36116  (sql: psychopg: investigate how `'infinity'::timestamp` is presented)
   1: #26732  (sql: support the binary operator: <int> / <float>)
   1: #23299  (sql: support coercing string literals to arrays)
   1: #36115  (sql: psychopg: investigate if datetimetz is being returned instead of datetime)
   1: #26925  (sql: make the CockroachDB integer types more compatible with postgres)
   1: #21085  (sql: WITH RECURSIVE (recursive common table expressions))
   1: #36179  (sql: implicity convert date to timestamp)
   1: #36118  (sql: Cannot parse '24:00' as type time)
   1: #31708  (sql: support current_time)
```

Release justification: non-production change
Release note: None

Co-authored-by: Jordan Lewis <jordanthelewis@gmail.com>
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github-actions bot commented Jun 4, 2021

We have marked this issue as stale because it has been inactive for
18 months. If this issue is still relevant, removing the stale label
or adding a comment will keep it active. Otherwise, we'll close it in
5 days to keep the issue queue tidy. Thank you for your contribution
to CockroachDB!

@pablo-sumup
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Hello,
We need pg_terminate_backend() because sometimes we use libraries that do not disconnect as expected.
Do you have an ETA for implementing this function?

@rafiss
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rafiss commented Aug 16, 2022

Can you say more? CockroachDB is quite different from Postgres when it comes to session management.

In Postgres, there is a separate process per connection, so there are more resources to clean up when a session ends.

In CockroachDB, a session is a goroutine, and if the session is disconnected (even uncleanly), all the server-side state associated with that session is automatically released.

@pablo-sumup
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pablo-sumup commented Aug 16, 2022 via email

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