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51 Commits (63422c7d6cfe092af402f48e16729acd1e3bae1c)

Author SHA1 Message Date
robford d38dd85756 Allowed nxtf to signal end of data by returning nil,nil 
Added some test
Improved documentation
 2023-11-11 10:06:58 -06:00
robford b4d72d4fce copyFromFunc 2023-11-11 10:06:58 -06:00
robford ccdd85a5eb added ChopyFromCh 2023-11-11 10:06:58 -06:00
Dmitry K b2b4fbcf57 Set socket to non-blocking mode in `Read`, `Flush` and `BufferReadUntilBlock` operations 2023-03-24 17:51:34 -05:00
Dmitry K 3db7d1774e Set socket to non-blocking mode before `doneChan` is allocated to avoid that channel leaked in case when `SetBlockingMode` will return error 2023-03-24 17:51:34 -05:00
Dmitry K 8b5e8d9d89 Fix Windows non-blocking I/O for CopyFrom 
Created based on discussion here: https://github.com/jackc/pgx/pull/1525#pullrequestreview-1344511991

Fixes https://github.com/jackc/pgx/issues/1552
 2023-03-24 17:51:34 -05:00
Jack Christensen 384a581e99 Avoid slightly overflowing the send copy buffer 
This avoids send buffer sequences such as 65531, 13, 65531, 13, 65531,
13, 65531, 13.
 2023-01-30 20:59:54 -06:00
Alejandro Do Nascimento Mora c4ac6d810f Use DefaultQueryExecMode in CopyFrom 
CopyFrom had to create a prepared statement to get the OIDs of the data
types that were going to be copied into the table. Every COPY operation
required an extra round trips to retrieve the type information. There
was no way to customize this behavior.

By leveraging the QueryExecMode feature, like in `Conn.Query`, users can
specify if they want to cache the prepared statements, execute
them on every request (like the old behavior), or bypass the prepared
statement relying on the pgtype.Map to get the type information.

The `QueryExecMode` behave exactly like in `Conn.Query` in the way the
data type OIDs are fetched, meaning that:

- `QueryExecModeCacheStatement`: caches the statement.
- `QueryExecModeCacheDescribe`: caches the statement and assumes they do
  not change.
- `QueryExecModeDescribeExec`: gets the statement description on every
  execution. This is like to the old behavior of `CopyFrom`.
- `QueryExecModeExec` and `QueryExecModeSimpleProtocol`: maintain the
  same behavior as before, which is the same as `QueryExecModeDescribeExec`.
  It will keep getting the statement description on every execution

The `QueryExecMode` can only be set via
`ConnConfig.DefaultQueryExecMode`, unlike `Conn.Query` there's no
support for specifying the `QueryExecMode` via optional arguments
in the function signature.
 2022-12-23 13:22:26 -06:00
Jack Christensen c130b2d74a Update CopyFrom documentation to be clearer 
Regarding binary requirement and enums in particular.

https://github.com/jackc/pgx/issues/1338
 2022-10-29 09:48:45 -05:00
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 759e47dba3 Merge branch 'master' into v5-dev 2022-07-12 07:26:00 -05:00
Stepan Rabotkin bfb19cd4f6 feat: add time duration to error query and copy 2022-05-12 19:05:08 -05:00
Jack Christensen f14fb3d692 Replace interface{} with any 2022-04-09 09:12:55 -05:00
Jack Christensen 2831eedef3 Simplify copy encoding 2022-03-05 20:27:36 -06:00
Jack Christensen d13f651810 Finish importing pgio as internal package 2022-02-21 14:35:20 -06:00
Jack Christensen 1f2f239d09 Renamed pgtype.ConnInfo to pgtype.Map 2022-02-21 09:13:09 -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 a49f4bb135 Use errors instead of golang.org/x/xerrors 2021-03-25 09:55:12 -04:00
Jack Christensen 38ab93613b Make CopyFrom log message more specific 2021-03-11 19:22:40 -06:00
Patrick Hemmer 41fa6e844c Add logging on CopyFrom 
Logging previously only logged statement results on Exec() and Query(), but not CopyFrom(). This makes change makes it consistent.
 2021-03-11 19:21:42 -06:00
Jack Christensen 0a2b67c5c5 CopyFromSlice should remember error 2020-12-02 09:32:01 -06:00
Egon Elbre e23c5bec24 add pgx.CopyFromSlice 
Using CopyFromRows can often be inconvenient to use, because you would
need to convert a typed array to an [][]interface{}. Similarly,
implementing a custom CopyFromSource is too verbose for one-off things.

Add CopyFromSlice that allows to more easily convert a slice to a
CopyFromSource. Example:

    copyCount, err := conn.CopyFrom(
        context.Background(),
        pgx.Identifier{"people"},
        []string{"first_name", "last_name", "age"},
        pgx.CopyFromSlice(len(rows), func(i int) ([]interface{}, error) {
            return []interface{user.FirstName, user.LastName, user.Age}, nil
        }),
    )
 2020-12-02 11:16:36 +02:00
Jack Christensen 3b9f79e2f3 Fix race condition in CopyFrom 
In case of an error it was possible for the goroutine that builds the
copy stream to still be running after CopyFrom returned. Since that
goroutine uses the connections ConnInfo data types to encode the copy
data it was possible for those types to be concurrently used in an
unsafe fashion.

CopyFrom will no longer return until that goroutine has completed.
 2020-02-14 17:30:44 -06:00
Jack Christensen 76348773bd Make Conn.ConnInfo private 2019-09-10 18:09:21 -05:00
Jack Christensen 3675337e5b Update for rename of pgconn.PreparedStatementDescription 2019-08-24 20:44:56 -05:00
Jack Christensen 31705e586a Use pgconn.PreparedStatementDescription directly 
Instead of having similar pgx.PreparedStatement
 2019-08-24 14:29:05 -05:00
Jack Christensen 6972a57421 pgtype.OID type should only be used for scanning and encoding values 
It was a mistake to use it in other contexts. This made interop
difficult between pacakges that depended on pgtype such as pgx and
packages that did not like pgconn and pgproto3. In particular this was
awkward for prepared statements.

This is preparation for removing pgx.PreparedStatement in favor of
pgconn.PreparedStatement.
 2019-08-24 13:55:57 -05:00
Jack Christensen 583c8d3b25 Use pgproto3.FieldDescription instead of pgx version 
This allows removing a malloc and memcpy.
 2019-05-04 13:47:18 -05:00
Jack Christensen d93de3fdc7 Add CopyFrom to pool 2019-04-25 15:35:53 -05:00
Jack Christensen cc3461e65d Use golang.org/x/xerrors 2019-04-20 17:43:44 -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 858d00788a Use extracted packages with Go modules 2019-04-05 10:59:47 -05:00
Jack Christensen d3a2c1c107 Partial conversion of pgx to use pgconn 2019-01-26 16:46:30 -06:00
Jack Christensen e78fd95296 Fix switching CommandTag back to string 2019-01-05 18:53:07 -06:00
Jack Christensen 7f9540438c pgx uses pgconn.CommandTag instead of own definition 2019-01-01 16:55:48 -06:00
Jack Christensen 1ff8024df9 Access underlying net.Conn via method 
Also remove some dead code.
 2018-12-31 18:00:08 -06:00
Jack Christensen b63370e5d5 Rename base.Conn to base.PgConn 
- pgx.Conn embeds base.PgConn privately
- Add pgx.Conn.ParameterStatus
 2018-12-28 12:16:50 -06:00
Jack Christensen 25f21a597c Merge branch 'nvorobev-rows-affected-for-copyto-copyfrom' into v4-experimental 2018-12-15 17:26:48 -06:00
Nikolay Vorobev a0331e7409 Adds RowsAffected for CopyToWriter and CopyFromReader 2018-12-13 12:54:42 +03:00
Jack Christensen 2e72ca854a First extraction of base.Conn 2018-11-10 18:48:43 -06:00
Fredrik Petrini c6cec81e2c Fix: Handle (n > 0 and err == io.EOF) in CopyFromReader as per io.Reader documentation 2018-10-08 11:39:18 +02:00
Murat Kabilov 4e9a696434 addressing the comments 
add copy methods to the Tx struct
 2018-08-07 23:44:02 +03:00
Murat Kabilov 5315995dfa Add *Conn. CopyFromTextual, CopyToTextual, which use textual format for copying data 2018-07-31 08:57:53 +02:00
Jack Christensen 20c02acd63 Fix deadlock when CopyFromSource panics 
fixes #433
 2018-07-14 11:26:09 -05:00
Jack Christensen 8f4178b3d3 Use github.com/pkg/errors 2017-06-04 21:30:03 -05:00
Jack Christensen 458dd24a9f Remove unneeded WriteBuf 2017-05-02 21:39:23 -05:00
Jack Christensen f04c58338b Introduce pgproto3 package 
pgproto3 will wrap the message encoding and decoding for the PostgreSQL
frontend/backend protocol version 3.
 2017-04-29 10:02:38 -05:00
Jack Christensen a636ef31a4 Refactor encoding parameters for prepared statements 2017-03-18 14:23:04 -05:00