mariadb/storage/myisammrg/Makefile.am
gshchepa/uchum@host.loc 107b84f9bd Fixed bug#36006: Optimizer does table scan for SELECT COUNT(*)
for ENGINE=MRG_MYISAM (should be optimized out).

Before WL#3281 MERGE engine had the HA_NOT_EXACT_COUNT flag
unset, and it worked with COUNT optimization as desired.
After the removal of the HA_NOT_EXACT_COUNT flag neither
HA_STATS_RECORDS_IS_EXACT (opposite to former HA_NOT_EXACT_COUNT
flag) nor modern HA_HAS_RECORDS flag were not added to MERGE
table flag mask.

1. The HA_HAS_RECORDS table flag has been set.
2. The ha_myisammrg::records method has been overridden to
   calculate total number of records in underlying tables.
2008-04-26 02:45:58 +05:00

44 lines
1.6 KiB
Makefile

# Copyright (C) 2000-2002, 2005-2006 MySQL AB
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
MYSQLDATAdir = $(localstatedir)
MYSQLSHAREdir = $(pkgdatadir)
MYSQLBASEdir= $(prefix)
MYSQLLIBdir= $(pkglibdir)
INCLUDES = -I$(top_srcdir)/include -I$(top_builddir)/include \
-I$(top_srcdir)/regex \
-I$(top_srcdir)/sql \
-I$(srcdir)
WRAPLIBS=
LDADD =
DEFS = @DEFS@
pkglib_LIBRARIES = libmyisammrg.a
noinst_HEADERS = myrg_def.h ha_myisammrg.h
noinst_LIBRARIES = libmyisammrg.a
libmyisammrg_a_SOURCES = myrg_open.c myrg_extra.c myrg_info.c myrg_locking.c \
myrg_rrnd.c myrg_update.c myrg_delete.c myrg_rsame.c \
myrg_panic.c myrg_close.c myrg_create.c myrg_static.c \
myrg_rkey.c myrg_rfirst.c myrg_rlast.c myrg_rnext.c \
myrg_rprev.c myrg_queue.c myrg_write.c myrg_range.c \
ha_myisammrg.cc \
myrg_rnext_same.c myrg_records.c
EXTRA_DIST = CMakeLists.txt plug.in
# Don't update the files from bitkeeper
%::SCCS/s.%