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Author SHA1 Message Date
Jack Christensen 8db0f280fb Add benchmarks for RowToStructBy(Pos|Name) 2024-04-16 12:59:40 -05:00
Jack Christensen d43bd349c1 Add batch insert benchmarks 2023-08-08 18:44:31 -05:00
Jack Christensen 5c6cf62b53 Fix off by one error in benchmark 2023-08-08 18:38:34 -05:00
Dan McGee 0328d314ea Use bytes.Equal rather than bytes.Compare ==/!= 0 
As recommended by go-staticcheck, but also might be a bit more efficient
for the compiler to implement, since we don't care about which slice of
bytes is greater than the other one.
 2023-07-08 12:08:05 -05:00
Jack Christensen 4410fc0a65 Remove nbconn 
The non-blocking IO system was designed to solve three problems:

1. Deadlock that can occur when both sides of a connection are blocked
   writing because all buffers between are full.
2. The inability to use a write deadline with a TLS.Conn without killing
   the connection.
3. Efficiently check if a connection has been closed before writing.
   This reduces the cases where the application doesn't know if a query
   that does a INSERT/UPDATE/DELETE was actually sent to the server or
   not.

However, the nbconn package is extraordinarily complex, has been a
source of very tricky bugs, and has OS specific code paths. It also does
not work at all with underlying net.Conn implementations that do not
have platform specific non-blocking IO syscall support and do not
properly implement deadlines. In particular, this is the case with
golang.org/x/crypto/ssh.

I believe the deadlock problem can be solved with a combination of a
goroutine for CopyFrom like v4 used and a watchdog for regular queries
that uses time.AfterFunc.

The write deadline problem actually should be ignorable. We check for
context cancellation before sending a query and the actual Write should
be almost instant as long as the underlying connection is not blocked.
(We should only have to wait until it is accepted by the OS, not until
it is fully sent.)

Efficiently checking if a connection has been closed is probably the
hardest to solve without non-blocking reads. However, the existing code
only solves part of the problem. It can detect a closed or broken
connection the OS knows about, but it won't actually detect other types
of broken connections such as a network interruption. This is currently
implemented in CheckConn and called automatically when checking a
connection out of the pool that has been idle for over one second. I
think that changing CheckConn to a very short deadline read and changing
the pool to do an actual Ping would be an acceptable solution.

Remove nbconn and non-blocking code. This does not leave the system in
an entirely working state. In particular, CopyFrom is broken, deadlocks
can occur for extremely large queries or batches, and PgConn.CheckConn
is now a `select 1` ping. These will be resolved in subsequent commits.
 2023-06-12 09:39:26 -05:00
Mark Chambers 62a7e19a04 func multiInsert returns nil when err != nil 
I suspect it should return err.
 2023-01-16 20:06:01 -06:00
Jack Christensen 78875bb95a Add tracing support 
Replaces existing logging support. Package tracelog provides adapter for
old style logging.

https://github.com/jackc/pgx/issues/1061
 2022-07-16 12:27:10 -05:00
Jack Christensen 72b1dcff2f Add pgconn.CheckConn 2022-06-25 15:55:09 -05:00
Jack Christensen 7d5993d104 Add BenchmarkConnectClose 2022-05-28 06:32:39 -05:00
Jack Christensen f14fb3d692 Replace interface{} with any 2022-04-09 09:12:55 -05:00
Jack Christensen 8e341e20f3 Remove ConnConfig.BuildStatementCache 2022-03-12 09:23:40 -06:00
Jack Christensen f27178ba85 Initial privatization of stmtcache 
ConnConfig.BuildStatementCache is pending removal once connections
always have separate caches for prepared and described statements.
 2022-03-12 08:35:31 -06:00
Jack Christensen 1f2f239d09 Renamed pgtype.ConnInfo to pgtype.Map 2022-02-21 09:13:09 -06:00
Jack Christensen bda10b2ec9 Rename pgtype.DataType to pgtype.Type 2022-02-21 09:01:48 -06:00
Jack Christensen a3c351d11a RegisterDataType now accepts *DataType 2022-02-21 08:49:04 -06:00
Jack Christensen ae9be0b99e Replace EnumType with EnumCodec 2022-01-11 20:46:10 -06:00
Jack Christensen 0c0e28a70a Convert int4 and int8 to new system 
Note: purposely disabled some tests and composite support that needs to
be restored later in v5 development.
 2022-01-01 17:26:39 -06:00
Jack Christensen 72cc95e4dd Bump module version to v5 2021-12-11 13:29:03 -06:00
Jack Christensen 0e293b966c Finish import of pgconn 2021-12-04 14:06:57 -06:00
Jack Christensen 7e13db4538 Finish import of pgtype repo 
Fix some tests that broke by merging repos
Tweak readme wording
 2021-12-04 13:45:57 -06:00
Jack Christensen 0e04d8187e Add raw benchmark 2020-06-01 08:53:45 -05:00
Jack Christensen bcdbb9f657 Tweak benchmarks to account for slow binary formats 
See https://www.postgresql.org/message-id/CAMovtNoHFod2jMAKQjjxv209PCTJx5Kc66anwWvX0mEiaXwgmA%40mail.gmail.com
 2020-05-25 11:18:11 -05:00
Jack Christensen 8faa1f5096 Fix off by one error with number of rows benchmark 2020-05-16 18:43:22 -05:00
Jack Christensen dea915e605 Compare binary and text format through pgx 
Make ID field bigger -- otherwise all ints are less than 4 digits and
get a bit too much of an advantage in text vs. binary
 2020-05-07 22:28:46 -05:00
Jack Christensen e439372d2a Add multi-row select benchmarks 2020-05-07 22:28:46 -05:00
Jack Christensen f9ce8af5c9 Add explicit enum support 2020-05-07 22:28:46 -05:00
Jack Christensen 3b8cd87875 Remove QueryArgs 
An external SQL builder like github.com/jackc/pgsql should be used
instead.
 2019-09-02 09:58:11 -05:00
Jack Christensen d5a6a5e7e0 Remove Results suffix from BatchResults methods 2019-08-24 23:41:28 -05:00
Jack Christensen 64b07f0d66 Batch uses statement cache. 
This streamlines Queue's interface as well.
 2019-08-24 23:40:21 -05:00
Jack Christensen 6508934508 Rename PreparedStatementCache to StatementCache 2019-08-24 22:19:29 -05:00
Jack Christensen 7f5e702d1a Fix benchmarks 2019-08-24 21:04:40 -05:00
Jack Christensen 12c1167147 Fix benchmarks now that date is UTC time 2019-08-24 20:57:15 -05:00
Jack Christensen 0c3e59b07a Add automatic statement cache 2019-08-24 20:29:54 -05:00
Jack Christensen c3e41872a8 Resplit Begin and BeginEx 
This is in preparation for a Begin / Tx interface that will similate
nested transactions with savepoints.

In addition, this passes the TxOptions struct by value and thereby
removes an allocation.
 2019-08-17 15:53:55 -05:00
Jack Christensen f3c703a102 Remove Conn SetLogger and SetLogLevel 
Simplifying interface
 2019-08-17 15:34:29 -05:00
Jack Christensen 3028821487 Add context.Context to Logger interface 
This allows custom logger adapters to add additional fields to log
messages. For example, a HTTP server may with to log the request ID.

fixes #428
 2019-08-03 16:16:21 -05:00
Jack Christensen f572b336b1 Improve pool Acquire / Release performance 
Release was using a goroutine every time. Now it only starts a goroutine
when doing something that may take a while. (Destroy and afterRelease)
 2019-05-04 17:36:08 -05:00
Jack Christensen 85ddbfeeee Remove 2 mallocs from query path 2019-05-04 08:55:05 -05:00
Jack Christensen aed6b822d9 Split batch command and result 2019-04-24 16:39:06 -05:00
Jack Christensen 2263521f70 Only have a single Begin transaction method 2019-04-24 13:35:27 -05:00
Jack Christensen 1b8f0016e9 Split pgtype into own repo 2019-04-20 19:20:00 -05:00
Jack Christensen efb333df6b Fix go modules 
Wow. This is fun. Sure is easy to get modules wrong when upgrading a v2+
project.
 2019-04-20 17:41:08 -05:00
Jack Christensen 66625e6489 Prepare takes context 
Also remove PrepareEx. It's primary usage was for context. Supplying
parameter OIDs is unnecessary when you can type cast in the query SQL.
If it does become necessary or desirable to add options back it can be
added in a backwards compatible way by adding a varargs as last
argument.
 2019-04-20 11:47:16 -05:00
Jack Christensen dc699cefc7 Conn.CopyFrom takes context 2019-04-20 11:38:23 -05:00
Jack Christensen 54c6ddc2f0 Commit and Rollback take context 
Remove Ex versions.
 2019-04-10 12:22:12 -05:00
Jack Christensen 7718ee6207 Remove Ex versions of Query and QueryRow 
Always require context and prepend options to arguments if necessary.
 2019-04-10 12:12:22 -05:00
Jack Christensen 77a2da2b46 Replace connection pool 2019-04-10 11:09:42 -05:00
Jack Christensen d3a2c1c107 Partial conversion of pgx to use pgconn 2019-01-26 16:46:30 -06:00
Jack Christensen 89c3d8af5d Remove ExecEx 2019-01-02 12:52:37 -06:00
Jack Christensen c672c0d595 Use environment variables for test configuration 2018-12-30 21:52:33 -06:00