DROP TABLE IF EXISTS t1,t2; CREATE TABLE t1 ( auto int(5) unsigned NOT NULL auto_increment, string char(10), vstring varchar(10), bin binary(7), vbin varbinary(7), tiny tinyint(4) DEFAULT '0' NOT NULL , short smallint(6) DEFAULT '1' NOT NULL , medium mediumint(8) DEFAULT '0' NOT NULL, long_int int(11) DEFAULT '0' NOT NULL, longlong bigint(13) DEFAULT '0' NOT NULL, real_float float(13,1) DEFAULT 0.0 NOT NULL, real_double double(16,4), real_decimal decimal(16,4), utiny tinyint(3) unsigned DEFAULT '0' NOT NULL, ushort smallint(5) unsigned zerofill DEFAULT '00000' NOT NULL, umedium mediumint(8) unsigned DEFAULT '0' NOT NULL, ulong int(11) unsigned DEFAULT '0' NOT NULL, ulonglong bigint(13) unsigned DEFAULT '0' NOT NULL, bits bit(3), options enum('zero','one','two','three','four') not null, flags set('zero','one','two','three','four') not null, date_field date, year_field year, time_field time, date_time datetime, time_stamp timestamp, PRIMARY KEY (auto) ) engine=ndb; insert into t1 values (NULL,"aaaa","aaaa",0xAAAA,0xAAAA,-1,-1,-1,-1,-1,1.1,1.1,1.1,1,1,1,1,1, b'001','one','one', '1901-01-01','1901', '01:01:01','1901-01-01 01:01:01',NULL), (NULL,"bbbb","bbbb",0xBBBB,0xBBBB,-2,-2,-2,-2,-2,2.2,2.2,2.2,2,2,2,2,2, b'010','two','one,two', '1902-02-02','1902', '02:02:02','1902-02-02 02:02:02',NULL), (NULL,"cccc","cccc",0xCCCC,0xCCCC,-3,-3,-3,-3,-3,3.3,3.3,3.3,3,3,3,3,3, b'011','three','one,two,three', '1903-03-03','1903', '03:03:03','1903-03-03 03:03:03',NULL), (NULL,"dddd","dddd",0xDDDD,0xDDDD,-4,-4,-4,-4,-4,4.4,4.4,4.4,4,4,4,4,4, b'100','four','one,two,three,four', '1904-04-04','1904', '04:04:04','1904-04-04 04:04:04',NULL); CREATE TABLE t2 (pk1 int unsigned NOT NULL PRIMARY KEY, attr1 int unsigned NOT NULL, attr2 int unsigned, attr3 VARCHAR(10) ) ENGINE=ndbcluster; insert into t2 values (0,0,0, "a"),(1,1,1,"b"),(2,2,NULL,NULL),(3,3,3,"d"),(4,4,4,"e"),(5,5,5,"f"); CREATE TABLE t3 (pk1 int unsigned NOT NULL PRIMARY KEY, attr1 int unsigned NOT NULL, attr2 bigint unsigned, attr3 tinyint unsigned, attr4 VARCHAR(10) ) ENGINE=ndbcluster; insert into t3 values (0,0,0,0,"a"),(1,1,9223372036854775803,1,"b"),(2,2,9223372036854775804,2,"c"),(3,3,9223372036854775805,3,"d"),(4,4,9223372036854775806,4,"e"),(5,5,9223372036854775807,5,"f"); CREATE TABLE t4 (pk1 int unsigned NOT NULL PRIMARY KEY, attr1 int unsigned NOT NULL, attr2 bigint unsigned, attr3 tinyint unsigned, attr4 VARCHAR(10) , KEY (attr1)) ENGINE=ndbcluster; insert into t4 values (0,0,0,0,"a"),(1,1,9223372036854775803,1,"b"),(2,2,9223372036854775804,2,"c"),(3,3,9223372036854775805,3,"d"),(4,4,9223372036854775806,4,"e"),(5,5,9223372036854775807,5,"f"); set @old_ecpd = @@session.engine_condition_pushdown; set engine_condition_pushdown = off; select auto from t1 where string = "aaaa" and vstring = "aaaa" and bin = 0xAAAA and vbin = 0xAAAA and tiny = -1 and short = -1 and medium = -1 and long_int = -1 and longlong = -1 and real_float > 1.0 and real_float < 2.0 and real_double > 1.0 and real_double < 2.0 and real_decimal > 1.0 and real_decimal < 2.0 and utiny = 1 and ushort = 1 and umedium = 1 and ulong = 1 and ulonglong = 1 and bits = b'001' and options = 'one' and flags = 'one' and date_field = '1901-01-01' and year_field = '1901' and time_field = '01:01:01' and date_time = '1901-01-01 01:01:01' order by auto; auto 1 select auto from t1 where string != "aaaa" and vstring != "aaaa" and bin != 0xAAAA and vbin != 0xAAAA and tiny != -1 and short != -1 and medium != -1 and long_int != -1 and longlong != -1 and (real_float < 1.0 or real_float > 2.0) and (real_double < 1.0 or real_double > 2.0) and (real_decimal < 1.0 or real_decimal > 2.0) and utiny != 1 and ushort != 1 and umedium != 1 and ulong != 1 and ulonglong != 1 and bits != b'001' and options != 'one' and flags != 'one' and date_field != '1901-01-01' and year_field != '1901' and time_field != '01:01:01' and date_time != '1901-01-01 01:01:01' order by auto; auto 2 3 4 select auto from t1 where string > "aaaa" and vstring > "aaaa" and bin > 0xAAAA and vbin > 0xAAAA and tiny < -1 and short < -1 and medium < -1 and long_int < -1 and longlong < -1 and real_float > 1.1 and real_double > 1.1 and real_decimal > 1.1 and utiny > 1 and ushort > 1 and umedium > 1 and ulong > 1 and ulonglong > 1 and bits > b'001' and (options = 'two' or options = 'three' or options = 'four') and (flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field > '1901-01-01' and year_field > '1901' and time_field > '01:01:01' and date_time > '1901-01-01 01:01:01' order by auto; auto 2 3 4 select auto from t1 where string >= "aaaa" and vstring >= "aaaa" and bin >= 0xAAAA and vbin >= 0xAAAA and tiny <= -1 and short <= -1 and medium <= -1 and long_int <= -1 and longlong <= -1 and real_float >= 1.0 and real_double >= 1.0 and real_decimal >= 1.0 and utiny >= 1 and ushort >= 1 and umedium >= 1 and ulong >= 1 and ulonglong >= 1 and bits >= b'001' and (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field >= '1901-01-01' and year_field >= '1901' and time_field >= '01:01:01' and date_time >= '1901-01-01 01:01:01' order by auto; auto 1 2 3 4 select auto from t1 where string < "dddd" and vstring < "dddd" and bin < 0xDDDD and vbin < 0xDDDD and tiny > -4 and short > -4 and medium > -4 and long_int > -4 and longlong > -4 and real_float < 4.4 and real_double < 4.4 and real_decimal < 4.4 and utiny < 4 and ushort < 4 and umedium < 4 and ulong < 4 and ulonglong < 4 and bits < b'100' and (options = 'one' or options = 'two' or options = 'three') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three') and date_field < '1904-01-01' and year_field < '1904' and time_field < '04:04:04' and date_time < '1904-04-04 04:04:04' order by auto; auto 1 2 3 select auto from t1 where string <= "dddd" and vstring <= "dddd" and bin <= 0xDDDD and vbin <= 0xDDDD and tiny >= -4 and short >= -4 and medium >= -4 and long_int >= -4 and longlong >= -4 and real_float <= 4.5 and real_double <= 4.5 and real_decimal <= 4.5 and utiny <= 4 and ushort <= 4 and umedium <= 4 and ulong <= 4 and ulonglong <= 4 and bits <= b'100' and (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field <= '1904-04-04' and year_field <= '1904' and time_field <= '04:04:04' and date_time <= '1904-04-04 04:04:04' order by auto; auto 1 2 3 4 select auto from t1 where string like "b%" and vstring like "b%" and bin like concat(0xBB, '%') and vbin like concat(0xBB, '%') order by auto; auto 2 select auto from t1 where string not like "b%" and vstring not like "b%" and bin not like concat(0xBB, '%') and vbin not like concat(0xBB, '%') order by auto; auto 1 3 4 select * from t2 where attr3 is null or attr1 > 2 and pk1= 3 order by pk1; pk1 attr1 attr2 attr3 2 2 NULL NULL 3 3 3 d select * from t2 where attr3 is not null and attr1 > 2 order by pk1; pk1 attr1 attr2 attr3 3 3 3 d 4 4 4 e 5 5 5 f select * from t3 where attr2 > 9223372036854775803 and attr3 != 3 order by pk1; pk1 attr1 attr2 attr3 attr4 2 2 9223372036854775804 2 c 4 4 9223372036854775806 4 e 5 5 9223372036854775807 5 f select * from t2,t3 where t2.attr1 < 1 and t2.attr2 = t3.attr2 and t3.attr1 < 5 order by t2.pk1; pk1 attr1 attr2 attr3 pk1 attr1 attr2 attr3 attr4 0 0 0 a 0 0 0 0 a select * from t4 where attr1 < 5 and attr2 > 9223372036854775803 and attr3 != 3 order by t4.pk1; pk1 attr1 attr2 attr3 attr4 2 2 9223372036854775804 2 c 4 4 9223372036854775806 4 e select * from t3,t4 where t4.attr1 > 1 and t4.attr2 = t3.attr2 and t4.attr3 < 5 order by t4.pk1; pk1 attr1 attr2 attr3 attr4 pk1 attr1 attr2 attr3 attr4 2 2 9223372036854775804 2 c 2 2 9223372036854775804 2 c 3 3 9223372036854775805 3 d 3 3 9223372036854775805 3 d 4 4 9223372036854775806 4 e 4 4 9223372036854775806 4 e set engine_condition_pushdown = on; explain select auto from t1 where string = "aaaa" and vstring = "aaaa" and bin = 0xAAAA and vbin = 0xAAAA and tiny = -1 and short = -1 and medium = -1 and long_int = -1 and longlong = -1 and real_float > 1.0 and real_float < 2.0 and real_double > 1.0 and real_double < 2.0 and real_decimal > 1.0 and real_decimal < 2.0 and utiny = 1 and ushort = 1 and umedium = 1 and ulong = 1 and ulonglong = 1 and /* bits = b'001' and */ options = 'one' and flags = 'one' and date_field = '1901-01-01' and year_field = '1901' and time_field = '01:01:01' and date_time = '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string = "aaaa" and vstring = "aaaa" and bin = 0xAAAA and vbin = 0xAAAA and tiny = -1 and short = -1 and medium = -1 and long_int = -1 and longlong = -1 and real_float > 1.0 and real_float < 2.0 and real_double > 1.0 and real_double < 2.0 and real_decimal > 1.0 and real_decimal < 2.0 and utiny = 1 and ushort = 1 and umedium = 1 and ulong = 1 and ulonglong = 1 and /* bits = b'001' and */ options = 'one' and flags = 'one' and date_field = '1901-01-01' and year_field = '1901' and time_field = '01:01:01' and date_time = '1901-01-01 01:01:01' order by auto; auto 1 explain select auto from t1 where string != "aaaa" and vstring != "aaaa" and bin != 0xAAAA and vbin != 0xAAAA and tiny != -1 and short != -1 and medium != -1 and long_int != -1 and longlong != -1 and (real_float < 1.0 or real_float > 2.0) and (real_double < 1.0 or real_double > 2.0) and (real_decimal < 1.0 or real_decimal > 2.0) and utiny != 1 and ushort != 1 and umedium != 1 and ulong != 1 and ulonglong != 1 and /* bits != b'001' and */ options != 'one' and flags != 'one' and date_field != '1901-01-01' and year_field != '1901' and time_field != '01:01:01' and date_time != '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string != "aaaa" and vstring != "aaaa" and bin != 0xAAAA and vbin != 0xAAAA and tiny != -1 and short != -1 and medium != -1 and long_int != -1 and longlong != -1 and (real_float < 1.0 or real_float > 2.0) and (real_double < 1.0 or real_double > 2.0) and (real_decimal < 1.0 or real_decimal > 2.0) and utiny != 1 and ushort != 1 and umedium != 1 and ulong != 1 and ulonglong != 1 and /* bits != b'001' and */ options != 'one' and flags != 'one' and date_field != '1901-01-01' and year_field != '1901' and time_field != '01:01:01' and date_time != '1901-01-01 01:01:01' order by auto; auto 2 3 4 explain select auto from t1 where string > "aaaa" and vstring > "aaaa" and bin > 0xAAAA and vbin > 0xAAAA and tiny < -1 and short < -1 and medium < -1 and long_int < -1 and longlong < -1 and real_float > 1.1 and real_double > 1.1 and real_decimal > 1.1 and utiny > 1 and ushort > 1 and umedium > 1 and ulong > 1 and ulonglong > 1 and /* bits > b'001' and */ (options = 'two' or options = 'three' or options = 'four') and (flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field > '1901-01-01' and year_field > '1901' and time_field > '01:01:01' and date_time > '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string > "aaaa" and vstring > "aaaa" and bin > 0xAAAA and vbin > 0xAAAA and tiny < -1 and short < -1 and medium < -1 and long_int < -1 and longlong < -1 and real_float > 1.1 and real_double > 1.1 and real_decimal > 1.1 and utiny > 1 and ushort > 1 and umedium > 1 and ulong > 1 and ulonglong > 1 and /* bits > b'001' and */ (options = 'two' or options = 'three' or options = 'four') and (flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field > '1901-01-01' and year_field > '1901' and time_field > '01:01:01' and date_time > '1901-01-01 01:01:01' order by auto; auto 2 3 4 explain select auto from t1 where string >= "aaaa" and vstring >= "aaaa" and bin >= 0xAAAA and vbin >= 0xAAAA and tiny <= -1 and short <= -1 and medium <= -1 and long_int <= -1 and longlong <= -1 and real_float >= 1.0 and real_double >= 1.0 and real_decimal >= 1.0 and utiny >= 1 and ushort >= 1 and umedium >= 1 and ulong >= 1 and ulonglong >= 1 and /* bits >= b'001' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field >= '1901-01-01' and year_field >= '1901' and time_field >= '01:01:01' and date_time >= '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string >= "aaaa" and vstring >= "aaaa" and bin >= 0xAAAA and vbin >= 0xAAAA and tiny <= -1 and short <= -1 and medium <= -1 and long_int <= -1 and longlong <= -1 and real_float >= 1.0 and real_double >= 1.0 and real_decimal >= 1.0 and utiny >= 1 and ushort >= 1 and umedium >= 1 and ulong >= 1 and ulonglong >= 1 and /* bits >= b'001' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field >= '1901-01-01' and year_field >= '1901' and time_field >= '01:01:01' and date_time >= '1901-01-01 01:01:01' order by auto; auto 1 2 3 4 explain select auto from t1 where string < "dddd" and vstring < "dddd" and bin < 0xDDDD and vbin < 0xDDDD and tiny > -4 and short > -4 and medium > -4 and long_int > -4 and longlong > -4 and real_float < 4.4 and real_double < 4.4 and real_decimal < 4.4 and utiny < 4 and ushort < 4 and umedium < 4 and ulong < 4 and ulonglong < 4 and /* bits < b'100' and */ (options = 'one' or options = 'two' or options = 'three') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three') and date_field < '1904-01-01' and year_field < '1904' and time_field < '04:04:04' and date_time < '1904-04-04 04:04:04' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string < "dddd" and vstring < "dddd" and bin < 0xDDDD and vbin < 0xDDDD and tiny > -4 and short > -4 and medium > -4 and long_int > -4 and longlong > -4 and real_float < 4.4 and real_double < 4.4 and real_decimal < 4.4 and utiny < 4 and ushort < 4 and umedium < 4 and ulong < 4 and ulonglong < 4 and /* bits < b'100' and */ (options = 'one' or options = 'two' or options = 'three') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three') and date_field < '1904-01-01' and year_field < '1904' and time_field < '04:04:04' and date_time < '1904-04-04 04:04:04' order by auto; auto 1 2 3 explain select auto from t1 where string <= "dddd" and vstring <= "dddd" and bin <= 0xDDDD and vbin <= 0xDDDD and tiny >= -4 and short >= -4 and medium >= -4 and long_int >= -4 and longlong >= -4 and real_float <= 4.5 and real_double <= 4.5 and real_decimal <= 4.5 and utiny <= 4 - 1 + 1 and /* Checking function composition */ ushort <= 4 and umedium <= 4 and ulong <= 4 and ulonglong <= 4 and /* bits <= b'100' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field <= '1904-04-04' and year_field <= '1904' and time_field <= '04:04:04' and date_time <= '1904-04-04 04:04:04' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string <= "dddd" and vstring <= "dddd" and bin <= 0xDDDD and vbin <= 0xDDDD and tiny >= -4 and short >= -4 and medium >= -4 and long_int >= -4 and longlong >= -4 and real_float <= 4.5 and real_double <= 4.5 and real_decimal <= 4.5 and utiny <= 4 - 1 + 1 and /* Checking function composition */ ushort <= 4 and umedium <= 4 and ulong <= 4 and ulonglong <= 4 and /* bits <= b'100' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field <= '1904-04-04' and year_field <= '1904' and time_field <= '04:04:04' and date_time <= '1904-04-04 04:04:04' order by auto; auto 1 2 3 4 create index medium_index on t1(medium); explain select auto from t1 where string = "aaaa" and vstring = "aaaa" and bin = 0xAAAA and vbin = 0xAAAA and tiny = -1 and short = -1 and medium = -1 and long_int = -1 and longlong = -1 and real_float > 1.0 and real_float < 2.0 and real_double > 1.0 and real_double < 2.0 and real_decimal > 1.0 and real_decimal < 2.0 and utiny = 1 and ushort = 1 and umedium = 1 and ulong = 1 and ulonglong = 1 and /* bits = b'001' and */ options = 'one' and flags = 'one' and date_field = '1901-01-01' and year_field = '1901' and time_field = '01:01:01' and date_time = '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref medium_index medium_index 3 const 10 Using where with pushed condition; Using filesort select auto from t1 where string = "aaaa" and vstring = "aaaa" and bin = 0xAAAA and vbin = 0xAAAA and tiny = -1 and short = -1 and medium = -1 and long_int = -1 and longlong = -1 and real_float > 1.0 and real_float < 2.0 and real_double > 1.0 and real_double < 2.0 and real_decimal > 1.0 and real_decimal < 2.0 and utiny = 1 and ushort = 1 and umedium = 1 and ulong = 1 and ulonglong = 1 and /* bits = b'001' and */ options = 'one' and flags = 'one' and date_field = '1901-01-01' and year_field = '1901' and time_field = '01:01:01' and date_time = '1901-01-01 01:01:01' order by auto; auto 1 explain select auto from t1 where string != "aaaa" and vstring != "aaaa" and bin != 0xAAAA and vbin != 0xAAAA and tiny != -1 and short != -1 and medium != -1 and long_int != -1 and longlong != -1 and (real_float < 1.0 or real_float > 2.0) and (real_double < 1.0 or real_double > 2.0) and (real_decimal < 1.0 or real_decimal > 2.0) and utiny != 1 and ushort != 1 and umedium != 1 and ulong != 1 and ulonglong != 1 and /* bits != b'001' and */ options != 'one' and flags != 'one' and date_field != '1901-01-01' and year_field != '1901' and time_field != '01:01:01' and date_time != '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range medium_index medium_index 3 NULL 20 Using where with pushed condition; Using filesort select auto from t1 where string != "aaaa" and vstring != "aaaa" and bin != 0xAAAA and vbin != 0xAAAA and tiny != -1 and short != -1 and medium != -1 and long_int != -1 and longlong != -1 and (real_float < 1.0 or real_float > 2.0) and (real_double < 1.0 or real_double > 2.0) and (real_decimal < 1.0 or real_decimal > 2.0) and utiny != 1 and ushort != 1 and umedium != 1 and ulong != 1 and ulonglong != 1 and /* bits != b'001' and */ options != 'one' and flags != 'one' and date_field != '1901-01-01' and year_field != '1901' and time_field != '01:01:01' and date_time != '1901-01-01 01:01:01' order by auto; auto 2 3 4 explain select auto from t1 where string > "aaaa" and vstring > "aaaa" and bin > 0xAAAA and vbin > 0xAAAA and tiny < -1 and short < -1 and medium < -1 and long_int < -1 and longlong < -1 and real_float > 1.1 and real_double > 1.1 and real_decimal > 1.1 and utiny > 1 and ushort > 1 and umedium > 1 and ulong > 1 and ulonglong > 1 and /* bits > b'001' and */ (options = 'two' or options = 'three' or options = 'four') and (flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field > '1901-01-01' and year_field > '1901' and time_field > '01:01:01' and date_time > '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range medium_index medium_index 3 NULL 10 Using where with pushed condition; Using filesort select auto from t1 where string > "aaaa" and vstring > "aaaa" and bin > 0xAAAA and vbin > 0xAAAA and tiny < -1 and short < -1 and medium < -1 and long_int < -1 and longlong < -1 and real_float > 1.1 and real_double > 1.1 and real_decimal > 1.1 and utiny > 1 and ushort > 1 and umedium > 1 and ulong > 1 and ulonglong > 1 and /* bits > b'001' and */ (options = 'two' or options = 'three' or options = 'four') and (flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field > '1901-01-01' and year_field > '1901' and time_field > '01:01:01' and date_time > '1901-01-01 01:01:01' order by auto; auto 2 3 4 explain select auto from t1 where string >= "aaaa" and vstring >= "aaaa" and bin >= 0xAAAA and vbin >= 0xAAAA and tiny <= -1 and short <= -1 and medium <= -1 and long_int <= -1 and longlong <= -1 and real_float >= 1.0 and real_double >= 1.0 and real_decimal >= 1.0 and utiny >= 1 and ushort >= 1 and umedium >= 1 and ulong >= 1 and ulonglong >= 1 and /* bits >= b'001' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field >= '1901-01-01' and year_field >= '1901' and time_field >= '01:01:01' and date_time >= '1901-01-01 01:01:01' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range medium_index medium_index 3 NULL 10 Using where with pushed condition; Using filesort select auto from t1 where string >= "aaaa" and vstring >= "aaaa" and bin >= 0xAAAA and vbin >= 0xAAAA and tiny <= -1 and short <= -1 and medium <= -1 and long_int <= -1 and longlong <= -1 and real_float >= 1.0 and real_double >= 1.0 and real_decimal >= 1.0 and utiny >= 1 and ushort >= 1 and umedium >= 1 and ulong >= 1 and ulonglong >= 1 and /* bits >= b'001' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field >= '1901-01-01' and year_field >= '1901' and time_field >= '01:01:01' and date_time >= '1901-01-01 01:01:01' order by auto; auto 1 2 3 4 explain select auto from t1 where string < "dddd" and vstring < "dddd" and bin < 0xDDDD and vbin < 0xDDDD and tiny > -4 and short > -4 and medium > -4 and long_int > -4 and longlong > -4 and real_float < 4.4 and real_double < 4.4 and real_decimal < 4.4 and utiny < 4 and ushort < 4 and umedium < 4 and ulong < 4 and ulonglong < 4 and /* bits < b'100' and */ (options = 'one' or options = 'two' or options = 'three') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three') and date_field < '1904-01-01' and year_field < '1904' and time_field < '04:04:04' and date_time < '1904-04-04 04:04:04' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range medium_index medium_index 3 NULL 10 Using where with pushed condition; Using filesort select auto from t1 where string < "dddd" and vstring < "dddd" and bin < 0xDDDD and vbin < 0xDDDD and tiny > -4 and short > -4 and medium > -4 and long_int > -4 and longlong > -4 and real_float < 4.4 and real_double < 4.4 and real_decimal < 4.4 and utiny < 4 and ushort < 4 and umedium < 4 and ulong < 4 and ulonglong < 4 and /* bits < b'100' and */ (options = 'one' or options = 'two' or options = 'three') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three') and date_field < '1904-01-01' and year_field < '1904' and time_field < '04:04:04' and date_time < '1904-04-04 04:04:04' order by auto; auto 1 2 3 explain select auto from t1 where string <= "dddd" and vstring <= "dddd" and bin <= 0xDDDD and vbin <= 0xDDDD and tiny >= -4 and short >= -4 and medium >= -4 and long_int >= -4 and longlong >= -4 and real_float <= 4.5 and real_double <= 4.5 and real_decimal <= 4.5 and utiny <= 4 - 1 + 1 and /* Checking function composition */ ushort <= 4 and umedium <= 4 and ulong <= 4 and ulonglong <= 4 and /* bits <= b'100' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field <= '1904-04-04' and year_field <= '1904' and time_field <= '04:04:04' and date_time <= '1904-04-04 04:04:04' order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range medium_index medium_index 3 NULL 10 Using where with pushed condition; Using filesort select auto from t1 where string <= "dddd" and vstring <= "dddd" and bin <= 0xDDDD and vbin <= 0xDDDD and tiny >= -4 and short >= -4 and medium >= -4 and long_int >= -4 and longlong >= -4 and real_float <= 4.5 and real_double <= 4.5 and real_decimal <= 4.5 and utiny <= 4 - 1 + 1 and /* Checking function composition */ ushort <= 4 and umedium <= 4 and ulong <= 4 and ulonglong <= 4 and /* bits <= b'100' and */ (options = 'one' or options = 'two' or options = 'three' or options = 'four') and (flags = 'one' or flags = 'one,two' or flags = 'one,two,three' or flags = 'one,two,three,four') and date_field <= '1904-04-04' and year_field <= '1904' and time_field <= '04:04:04' and date_time <= '1904-04-04 04:04:04' order by auto; auto 1 2 3 4 explain select auto from t1 where string like "b%" and vstring like "b%" and bin like concat(0xBB, '%') and vbin like concat(0xBB, '%') order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string like "b%" and vstring like "b%" and bin like concat(0xBB, '%') and vbin like concat(0xBB, '%') order by auto; auto 2 explain select auto from t1 where string not like "b%" and vstring not like "b%" and bin not like concat(0xBB, '%') and vbin not like concat(0xBB, '%') order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where with pushed condition; Using filesort select auto from t1 where string not like "b%" and vstring not like "b%" and bin not like concat(0xBB, '%') and vbin not like concat(0xBB, '%') order by auto; auto 1 3 4 update t1 set medium = 17 where string = "aaaa" and vstring = "aaaa" and bin = 0xAAAA and vbin = 0xAAAA and tiny = -1 and short = -1 and medium = -1 and long_int = -1 and longlong = -1 and real_float > 1.0 and real_float < 2.0 and real_double > 1.0 and real_double < 2.0 and real_decimal > 1.0 and real_decimal < 2.0 and utiny = 1 and ushort = 1 and umedium = 1 and ulong = 1 and ulonglong = 1 and /* bits = b'001' and */ options = 'one' and flags = 'one' and date_field = '1901-01-01' and year_field = '1901' and time_field = '01:01:01' and date_time = '1901-01-01 01:01:01'; delete from t1 where string = "aaaa" and vstring = "aaaa" and bin = 0xAAAA and vbin = 0xAAAA and tiny = -1 and short = -1 and medium = 17 and long_int = -1 and longlong = -1 and real_float > 1.0 and real_float < 2.0 and real_double > 1.0 and real_double < 2.0 and real_decimal > 1.0 and real_decimal < 2.0 and utiny = 1 and ushort = 1 and umedium = 1 and ulong = 1 and ulonglong = 1 and /* bits = b'001' and */ options = 'one' and flags = 'one' and date_field = '1901-01-01' and year_field = '1901' and time_field = '01:01:01' and date_time = '1901-01-01 01:01:01'; select count(*) from t1; count(*) 3 explain select * from t2 where attr3 is null or attr1 > 2 and pk1= 3 order by pk1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 6 Using where with pushed condition; Using filesort select * from t2 where attr3 is null or attr1 > 2 and pk1= 3 order by pk1; pk1 attr1 attr2 attr3 2 2 NULL NULL 3 3 3 d explain select * from t2 where attr3 is not null and attr1 > 2 order by pk1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where with pushed condition; Using filesort select * from t2 where attr3 is not null and attr1 > 2 order by pk1; pk1 attr1 attr2 attr3 3 3 3 d 4 4 4 e 5 5 5 f explain select * from t3 where attr2 > 9223372036854775803 and attr3 != 3 order by pk1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t3 ALL NULL NULL NULL NULL 6 Using where with pushed condition; Using filesort select * from t3 where attr2 > 9223372036854775803 and attr3 != 3 order by pk1; pk1 attr1 attr2 attr3 attr4 2 2 9223372036854775804 2 c 4 4 9223372036854775806 4 e 5 5 9223372036854775807 5 f explain select * from t2,t3 where t2.attr1 < 1 and t2.attr2 = t3.attr2 and t3.attr1 < 5 order by t2.pk1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where with pushed condition; Using temporary; Using filesort 1 SIMPLE t3 ALL NULL NULL NULL NULL 6 Using where with pushed condition select * from t2,t3 where t2.attr1 < 1 and t2.attr2 = t3.attr2 and t3.attr1 < 5 order by t2.pk1; pk1 attr1 attr2 attr3 pk1 attr1 attr2 attr3 attr4 0 0 0 a 0 0 0 0 a explain select * from t4 where attr1 < 5 and attr2 > 9223372036854775803 and attr3 != 3 order by t4.pk1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 range attr1 attr1 4 NULL 10 Using where with pushed condition; Using filesort select * from t4 where attr1 < 5 and attr2 > 9223372036854775803 and attr3 != 3 order by t4.pk1; pk1 attr1 attr2 attr3 attr4 2 2 9223372036854775804 2 c 4 4 9223372036854775806 4 e explain select * from t3,t4 where t4.attr1 > 1 and t4.attr2 = t3.attr2 and t4.attr3 < 5 order by t4.pk1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 range attr1 attr1 4 NULL 10 Using where with pushed condition; Using temporary; Using filesort 1 SIMPLE t3 ALL NULL NULL NULL NULL 6 Using where select * from t3,t4 where t4.attr1 > 1 and t4.attr2 = t3.attr2 and t4.attr3 < 5 order by t4.pk1; pk1 attr1 attr2 attr3 attr4 pk1 attr1 attr2 attr3 attr4 2 2 9223372036854775804 2 c 2 2 9223372036854775804 2 c 3 3 9223372036854775805 3 d 3 3 9223372036854775805 3 d 4 4 9223372036854775806 4 e 4 4 9223372036854775806 4 e explain select auto from t1 where string = "aaaa" collate latin1_general_ci order by auto; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using filesort explain select * from t2 where (attr1 < 2) = (attr2 < 2) order by pk1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using filesort set engine_condition_pushdown = @old_ecpd; DROP TABLE t1,t2,t3,t4;