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82 Commits (7d97dca9b180a45cf6631563af9aca260d8d9d23)

Author SHA1 Message Date
Jack Christensen 7d97dca9b1 Remove unused function 2014-07-09 08:23:38 -05:00
Jack Christensen 6ae7f63d00 Remove UnexpectedColumnCountError 2014-07-09 08:18:09 -05:00
Jack Christensen 009cdfa0b1 Use Scan and Encode* instead of ValueTranscoders 2014-07-09 07:56:48 -05:00
Jack Christensen 43dcd47a92 Move to Scan interface 
Remove SelectValue
 2014-07-05 18:23:19 -05:00
Jack Christensen 5b345e80e1 Remove SelectValueTo 
Benchmarks revealed that it is no longer performant enough to pull
its own wait. Using go_db_bench to copy JSON results to HTTP responses
it was ~20% *slower* for ~4BK responses and less than 10% faster for
+1MB responses.

The the performance problem was in io.CopyN / io.Copy. io.Copy
allocates a 32KB buffer if it doesn't have io.WriterTo or io.ReaderFrom
available. This extra alloc on every request was more expensive than
just reading the result into a string and writing it out to the response
body.

Tests indicated that if MsgReader implemented a custom Copy that used a
shared buffer it might have a few percent performance advantage. But the
additional complexity is not worth the performance gain.
 2014-07-05 09:32:47 -05:00
Jack Christensen b27d828311 Add RowReader.CopyBytes 
Implement SelectValueTo in terms of RowReader.CopyBytes
 2014-07-05 07:51:32 -05:00
Jack Christensen 7083c51689 Finish migration to writeBuf 2014-07-04 13:34:27 -05:00
Jack Christensen 81cc33f1ed Use writeBuf more 2014-07-04 13:29:23 -05:00
Jack Christensen 9ab8fb4877 Partially migrate to writeBuf 2014-07-04 13:27:24 -05:00
Jack Christensen b25aea5c52 MsgReader no longer uses double buffering 2014-07-04 13:08:37 -05:00
Jack Christensen 78b8e0b6f2 Safely handle bad reads of QueryResult 2014-06-30 19:01:36 -05:00
Jack Christensen 718c4dfdc8 Add *RowReader.ReadInt64 2014-06-30 08:14:13 -05:00
Jack Christensen d30ef1b8b9 Replace SelectFunc with Query as core 2014-06-28 17:07:31 -05:00
Jack Christensen b6ac3ef2b0 Rename Execute to Exec 2014-06-27 14:56:27 -05:00
Jack Christensen aeb6cea1cf Replace binary.Read 
It does memory allocs that can be avoided by passing a slice directly to
binary.BigEndian.*
 2014-06-27 08:20:15 -05:00
Jack Christensen e8f367ede4 Use flyweight for DataRowReader 2014-06-27 08:00:32 -05:00
Jack Christensen 84dd626bcc Make MessageReader a type of bytes.Buffer 2014-06-26 18:12:30 -05:00
Jack Christensen 3706b9519f Do not defer in rxMsgHeader 
Slightly faster.
 2014-06-26 08:39:29 -05:00
Jack Christensen aa6e9d0ddf Improve prepared statement performance 
* Do not use bufio.Writer - use net.Conn directly
* Use byte slice instead of bytes.Buffer when building query message
* Use binary.BigEndian.* instead of binary.Write
 2014-06-23 18:26:15 -05:00
Jack Christensen 7d0e178424 Determine automatically if Host is socket 
Instead of requiring user to specify either Host or Socket unify these fields.
It can be automatically determined whether it is a socket or not.
 2014-06-21 12:53:38 -05:00
Jack Christensen d9522a4741 Inform database/sql when connections die 2014-06-20 16:33:51 -05:00
Jack Christensen 7a8e80ac0d Make Conn Close idempotent 
* die (which is called by Close) now closes underlying connection
 2014-06-20 14:50:36 -05:00
Jack Christensen 247fd3be53 Fix CommandTag RowsAffected for INSERT 2014-06-20 13:38:01 -05:00
Jack Christensen 4efa61bf5b Prepare returns *PreparedStatement 2014-06-20 10:47:31 -05:00
Jack Christensen cc445627b0 Expose DataRowReader FieldDescriptions 2014-06-20 10:46:47 -05:00
Jack Christensen 772c6ca7d7 Remove MessageWriter 2014-06-19 18:10:04 -05:00
Jack Christensen 3b9a1ce659 ValueTranscoder EncodeTo now receives io.Writer 2014-06-19 17:48:26 -05:00
Jack Christensen 884252675e Handle ValueTranscoder EncodeTo returns error on bad type 
Instead of panicking
 2014-06-19 08:03:14 -05:00
Jack Christensen 5fe3dd7ecf Reduce nesting in message loops 2014-06-17 16:39:44 -05:00
Jack Christensen 928612917d Fix a couple go vet discovered issues 2014-06-11 07:59:43 -05:00
Jack Christensen b982aeb102 Improve logging some more 2014-06-05 17:36:40 -05:00
Jack Christensen ad88123f9c Improve logging 2014-06-04 09:31:54 -05:00
Jack Christensen cbddbb423e Replace logging functionality with log15 
gopkg.in/inconshreveable/log15.v2
 2014-06-02 19:47:09 -05:00
Jack Christensen f119d5221c Add CommandTag 2014-05-19 09:32:31 -05:00
Jack Christensen bc2a120301 Add constants for transaction isolation levels 2014-05-19 08:25:34 -05:00
Jack Christensen f9a2501100 Rename ConnectionPool to ConnPool 2014-05-17 13:40:50 -05:00
Jack Christensen 1ff653ae15 Rename ConnectionParameters to ConnConfig 2014-05-17 13:38:13 -05:00
Jack Christensen 4eb597d20b Rename pgx.Connection to pgx.Conn 2014-05-17 13:11:30 -05:00
Jack Christensen 70e461b769 Renamed conn* to connection* 2013-04-20 11:55:13 -05:00
Jack Christensen 58ae1855cb Extract Connection.SelectAll* to own file 2013-04-20 11:34:52 -05:00
Jack Christensen e27511a4c5 Extract Connection.Select* to own file 2013-04-20 11:30:06 -05:00
Jack Christensen 0b1ac12c0e Added basic null handling 
* Connection.SelectRows leaves null values empty
* Select* and SelectAll* now error on null

refs #4
 2013-04-20 11:14:01 -05:00
Jack Christensen ee25d4a03a Rename Select to SelectFunc to conform to Go standard lib style 2013-04-19 16:35:44 -05:00
Jack Christensen bf86100fec Rename Query to SelectRows 2013-04-19 16:18:11 -05:00
Jack Christensen 9a5c299563 Added Select to process rows as they come over the wire 
This was accomplished by promoting private query function to
public Select.

fixes #12
 2013-04-19 16:10:14 -05:00
Jack Christensen 310c7f5fd8 go fmt 2013-04-19 15:48:45 -05:00
Jack Christensen fa4c70907c Rename pgx.conn to pgx.Connection 2013-04-17 08:26:01 -05:00
Jack Christensen d306d42afb Added conn.Execute to run arbitrary SQL without a result set 
fixed #13
 2013-04-16 20:13:06 -05:00
Jack Christensen cbf03821e1 Revert making query methods automatically escape arguments. 
Must now call SanitizeSql explicitly.

This was necessary because go supports variadic arguments but not
totally optional arguments. So it would require something to
always be passed in.
 2013-04-16 19:55:01 -05:00
Jack Christensen 8392883350 Added SQL parameter sanitization 
fixes #3
 2013-04-15 20:22:28 -05:00