Fixed wrong mysql-test (6be95636) · Commits · Software / OSDI20 Artifacts / mariadb

Docs/internals.texi

+204 −5

Original line number	Diff line number	Diff line
		@@ -47,7 +47,7 @@ This is a manual about @strong{MySQL} internals.
		@menu
		@end menu

		@node caching
		@node caching,,,
		@chapter How MySQL handles caching

		@strong{MySQL} has the following caches:
		@@ -89,7 +89,7 @@ found rows are cached in a join cache. One SELECT query can use many
		join caches in the worst case.
		@end itemize

		@node flush tables
		@node flush tables,,,
		@chapter How MySQL handles flush tables

		@itemize @bullet
		@@ -134,7 +134,7 @@ After this it will give other threads a chance to open the same tables.

		@end itemize

		@node Filesort
		@node Filesort,,,
		@chapter How MySQL does sorting (filesort)

		@itemize @bullet
		@@ -174,7 +174,7 @@ and then we read the rows in the sorted order into a row buffer

		@end itemize

		@node Coding guidelines
		@node Coding guidelines,,,
		@chapter Coding guidelines

		@itemize @bullet
		@@ -289,7 +289,7 @@ Use pointers rather than array indexing when operating on strings.

		@end itemize

		@node mysys functions
		@node mysys functions,,,
		@chapter mysys functions

		Functions i mysys: (For flags se my_sys.h)
		@@ -433,6 +433,205 @@ Functions i mysys: (For flags se my_sys.h)
		void end_key_cache _A((void));
		- End key-cacheing.

		@node protocol,,,
		@chapter MySQL client/server protocol

		Raw packet without compression
		==============================
		-------------------------------------------------
		\| Packet Length \| Packet no \| Data \|
		\| 3 Bytes \| 1 Byte \| n Bytes \|
		-------------------------------------------------

		3 Byte packet length
		The length is calculated with int3store
		See include/global.h for details.
		The max packetsize can be 16 MB.
		1 Byte packet no

		If no compression is used the first 4 bytes of each paket
		is the header of the paket.
		The packet number is incremented for each sent packet. The first
		packet starts with 0

		n Byte data

		The packet length can be recalculated with:
		length = byte1 + (256 * byte2) + (256 * 256 * byte3)

		Raw packet with compression
		===========================
		-----------------------------------------------------
		\| Packet Length \| Packet no \| Uncomp. Packet Length \|
		\| 3 Bytes \| 1 Byte \| 3 Bytes \|
		-----------------------------------------------------

		3 Byte packet length
		The length is calculated with int3store
		See include/global.h for details.
		The max packetsize can be 16 MB.
		1 Byte packet no
		3 Byte uncompressed packet length

		If compression is used the first 7 bytes of each paket
		is the header of the paket.

		Basic packets
		==============
		OK-packet
		For details see sql/net_pkg.cc
		function send_ok
		-------------------------------------------------
		\| Header \| No of Rows \| Affected Rows \|
		\| \| 1 Byte \| 1-8 Byte \|
		-------------------------------------------------
		\| ID (last_insert_id) \| Status \| Length \|
		\| 1-8 Byte \| 2 Byte \| 1-8 Byte \|
		-------------------------------------------------
		\| Messagetext \|
		\| n Byte \|
		-------------------------------------------------

		Header
		1 byte number of rows ? (always 0 ?)
		1-8 bytes affected rows
		1-8 byte id (last_insert_id)
		2 byte Status (usually 0)
		If the OK-packege includes a message:
		1-8 bytes length of message
		n bytes messagetext

		Error-packet
		-------------------------------------------------
		\| Header \| Statuscode \| Error no \|
		\| \| 1 Byte \| 2 Byte \|
		-------------------------------------------------
		\| Messagetext \| 0x00 \|
		\| n Byte \| 1 Byte \|
		-------------------------------------------------

		Header
		1 byte status code (0xFF = ERROR)
		2 byte error number (is only sent to new 3.23 clients.
		n byte errortext
		1 byte 0x00



		The communication
		=================

		> Packet from server to client
		< Paket from client tor server

		Login
		------
		> 1. packet
		Header
		1 byte protocolversion
		n byte serverversion
		1 byte 0x00
		4 byte threadnumber
		8 byte crypt seed
		1 byte 0x00
		2 byte CLIENT_xxx options (see include/mysql_com.h
		that is supported by the server
		1 byte number of current server charset
		2 byte server status variables (SERVER_STATUS_xxx flags)
		13 byte 0x00 (not used yet).

		< 2. packet
		Header
		2 byte CLIENT_xxx options
		3 byte max_allowed_packet for the client
		n byte username
		1 byte 0x00
		8 byte crypted password
		1 byte 0x00
		n byte databasename
		1 byte 0x00

		> 3. packet
		OK-packet


		Command
		--------
		< 1. packet
		Header
		1 byte command type (e.g.0x03 = query)
		n byte query

		Result set (after command)
		--------------------------
		> 2. packet
		Header
		1-8 byte field_count (packed with net_store_length())

		If field_count == 0 (command):
		1-8 byte affected rows
		1-8 byte insert id
		2 bytes server_status (SERVER_STATUS_xx)

		If field_count == NULL_LENGTH (251)
		LOAD DATA LOCAL INFILE

		If field_count > 0 Result Set:

		> n packets
		Header Info
		Column description: 5 data object /column
		(See code in unpack_fields())

		Columninfo for each column:
		1 data block table_name
		1 byte length of block
		n byte data
		1 data block field_name
		1 byte length of block...
		n byte data
		1 data block display length of field
		1 byte length of block
		3 bytes display length of filed
		1 data block type field of type (enum_field_types)
		1 byte length of block
		1 bytexs field of type
		1 data block flags
		1 byte length of block
		2 byte flags for the columns (NOT_NULL_FLAG, ZEROFILL_FLAG....)
		1 byte decimals

		if table definition:
		1 data block default value

		Actual result (one packet per row):
		4 byte header
		1-8 byte length of data
		n data


		Fieldtype Codes:
		================

		display_length \|enum_field_type \|flags
		----------------------------------------------------
		Blob 03 FF FF 00 \|01 FC \|03 90 00 00
		Mediumblob 03 FF FF FF \|01 FC \|03 90 00 00
		Tinyblob 03 FF 00 00 \|01 FC \|03 90 00 00
		Text 03 FF FF 00 \|01 FC \|03 10 00 00
		Mediumtext 03 FF FF FF \|01 FC \|03 10 00 00
		Tinytext 03 FF 00 00 \|01 FC \|03 10 00 00
		Integer 03 0B 00 00 \|01 03 \|03 03 42 00
		Mediumint 03 09 00 00 \|01 09 \|03 00 00 00
		Smallint 03 06 00 00 \|01 02 \|03 00 00 00
		Tinyint 03 04 00 00 \|01 01 \|03 00 00 00
		Varchar 03 XX 00 00 \|01 FD \|03 00 00 00
		Enum 03 05 00 00 \|01 FE \|03 00 01 00
		Datetime 03 13 00 00 \|01 0C \|03 00 00 00
		Timestamp 03 0E 00 00 \|01 07 \|03 61 04 00
		Time 03 08 00 00 \|01 0B \|03 00 00 00
		Date 03 0A 00 00 \|01 0A \|03 00 00 00


		@c The Index was empty, and ugly, so I removed it. (jcole, Sep 7, 2000)

Docs/manual.texi

+4 −0

Original line number	Diff line number	Diff line
		@@ -2612,6 +2612,10 @@ M2D, a @strong{MySQL} Administration client for Windows. M2D supports
		administration of @strong{MySQL} databases, creation of new databases and
		tables, editing, and more.

		@item @uref{http://dlabs.4t2.com}
		Dexter, a small server written in Perl which can be used as a proxy server for
		@strong{MySQL} or as a database extender.

		@item @uref{http://www.scibit.com/Products/Software/Utils/Mascon.asp}
		Mascon is a powerful Win32 GUI for administering MySQL databases.

configure.in

+1 −1

Original line number	Diff line number	Diff line
		@@ -4,7 +4,7 @@ dnl Process this file with autoconf to produce a configure script.
		AC_INIT(sql/mysqld.cc)
		AC_CANONICAL_SYSTEM
		# The Docs Makefile.am parses this line!
		AM_INIT_AUTOMAKE(mysql, 3.23.39)
		AM_INIT_AUTOMAKE(mysql, 3.23.39a)
		AM_CONFIG_HEADER(config.h)

		PROTOCOL_VERSION=10

mysql-test/t/check.test

+1 −1

Original line number	Diff line number	Diff line
		@@ -15,4 +15,4 @@ connection con2;
		insert into t1 values (200000);
		connection con1;
		reap;

		drop table t1;

mysql-test/t/compare.test

+1 −0

Original line number	Diff line number	Diff line
		@@ -2,6 +2,7 @@
		# Bug when using comparions of strings and integers.
		#

		drop table if exists t1;
		CREATE TABLE t1 (id CHAR(12) not null, PRIMARY KEY (id));
		insert into t1 values ('000000000001'),('000000000002');
		explain select * from t1 where id=000000000001;