#977 Prepared statements in embedded library


include/mysql.h:
  read_prepare_result function moved to 'virtual'
libmysql/client_settings.h:
  declare proper function for libmysql
libmysql/libmysql.c:
  some code moved from implementation of read_prepare_result to 
  mysql_prepare_result to make creating separate (remote and embedded-server)
  versions easier
libmysqld/libmysqld.c:
  emb_read_prepare_result prototype
sql-common/client.c:
  cli_read_prepare_result added to the client_methods
sql/client_settings.h:
  we don't need prepared statements in mini_client
sql/sql_prepare.cc:
  embedded send_prep_stmt added

embedded&client library
some fixes: zero at the end of the data added
mysql_list_fields became 'virtual'


include/mysql.h:
  mysql_list_fields became 'virtual'
libmysql/client_settings.h:
  in client library we need proper implementation for list_fields
libmysql/libmysql.c:
  implementation for remote server
libmysqld/lib_sql.cc:
  we still need zero at the end of the data in client (see mysql.cc).
  I feel it should be changed
libmysqld/libmysqld.c:
  implementation for embedded server
sql-common/client.c:
  cli_list_fields member set for client library
sql/client_settings.h:
  we don't need mysql_list_fields in mini_client code

into bar.mysql.r18.ru:/usr/home/bar/mysql-4.1

This is to simplify fixing indexes to mean number of chars rather than bytes too.

into deer.(none):/home/hf/work/mysql-4.1.2way

Minor fixes


libmysqld/lib_sql.cc:
  Comment added
libmysqld/libmysqld.c:
  this part of code should be moved under if (mysql)

into sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1

into deer.(none):/home/hf/work/mysql-4.1.2way

mysql_fetch_length fixed for embedded library. Now data length is stored
before the data. Pointers in row still points to the data so you have to
get *(uint*)(data_ptr - sizeof(uint)) to get data length


libmysqld/lib_sql.cc:
  bug fixed - user didn't get error description
  Protocol::net_store_data changed to store data length before the data
libmysqld/libmysqld.c:
  emb_fetch_length changed to retrive data length stored before the data

into sanja.is.com.ua:/home/bell/mysql/bk/work-in-4.1


mysql-test/r/subselect.result:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged

into mysql.r18.ru:/usr/home/ram/work/4.1

mysql-test/r/subselect.result:
  Auto merged
sql/item.cc:
  Auto merged

into sanja.is.com.ua:/home/bell/mysql/bk/work-optimized_prepared-4.1


sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/sql_lex.h:
  Auto merged

Happens when braces are used on a single select, which leads
to the uninitialized global parameters structure.

fixed IN optimisation bug


mysql-test/r/subselect.result:
  test of IN optimisation bug
mysql-test/t/subselect.test:
  test of IN optimisation bug
sql/item_subselect.cc:
  fixed IN optimisation bug
sql/mysql_priv.h:
  constant for additional IN subquery condition detecting
sql/mysqld.cc:
  constant for additional IN subquery condition detecting
sql/sql_select.cc:
  removing additional IN subquery condition

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

innobase/row/row0sel.c:
  SCCS merged

libmysqld/lib_sql.cc:
  we need ER() macrodefinition from errmsg.h

sql/sql_parse.cc:
  This line fails in libmysqld.
  And isn't needed while we don't check privileges in embedded library

sql/sql_parse.cc:
  It's better to check for HAVE_REPLICATION here instead of EMBEDDED_LIBRARY

into mysql.r18.ru:/usr/home/ram/work/4.1

into deer.(none):/home/hf/work/mysql-4.1.clean

include/errmsg.h:
  Error code added
libmysql/errmsg.c:
  Error message added
libmysqld/lib_sql.cc:
  static inited variable changed to global server_inited
libmysqld/libmysqld.c:
  check for mysql_server_init execution added

into sanja.is.com.ua:/home/bell/mysql/bk/work-in-4.1

mysql-test/r/subselect.result:
  row union test
mysql-test/t/subselect.test:
  row union test

into deer.(none):/home/hf/work/mysql-4.1.clean

libmysqld/lib_sql.cc:
  There's now one common SCRAMBLE_LENGTH
sql/sql_load.cc:
  mysql_load fixed to work with embedded library
sql/sql_parse.cc:
  LOAD DATA enabled for embedded library

into sanja.is.com.ua:/home/bell/mysql/bk/work-string_parameters-4.1

correct bug 1085 (a problem with min/max functions)
add tests of bugs 833,836,1085


mysql-test/r/func_gconcat.result:
  add tests of bugs 833, 836, 1085
mysql-test/t/func_gconcat.test:
  add tests of bugs #833, 836, 1085
sql/item_sum.cc:
  merge
sql/item_sum.h:
  correct bug 1085

embedded library.

into oak.local:/home/kostja/mysql/mysql-4.1-root

into serg.mylan:/usr/home/serg/Abk/mysql-4.1


sql/item_create.cc:
  Auto merged
sql/item_create.h:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/lex.h:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged