Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 t1 g g 255 4294967295 0 Y 144 0 63
g
select asbinary(g) from t1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def asbinary(g) 252 4294967295 0 Y 128 0 63
asbinary(g)
drop table t1;
create table t1 (a TEXT, b GEOMETRY NOT NULL, SPATIAL KEY(b));
alter table t1 disable keys;
load data infile '../../std_data/bad_gis_data.dat' into table t1;
ERROR 01000: Data truncated; NULL supplied to NOT NULL column 'b' at row 1
alter table t1 enable keys;
drop table t1;
create table t1 (a int, b blob);
insert into t1 values (1, ''), (2, NULL), (3, '1');
select * from t1;
a b
1
2 NULL
3 1
select
geometryfromtext(b) IS NULL, geometryfromwkb(b) IS NULL, astext(b) IS NULL,
aswkb(b) IS NULL, geometrytype(b) IS NULL, centroid(b) IS NULL,
envelope(b) IS NULL, startpoint(b) IS NULL, endpoint(b) IS NULL,
exteriorring(b) IS NULL, pointn(b, 1) IS NULL, geometryn(b, 1) IS NULL,
interiorringn(b, 1) IS NULL, multipoint(b) IS NULL, isempty(b) IS NULL,
issimple(b) IS NULL, isclosed(b) IS NULL, dimension(b) IS NULL,
numgeometries(b) IS NULL, numinteriorrings(b) IS NULL, numpoints(b) IS NULL,
area(b) IS NULL, glength(b) IS NULL, srid(b) IS NULL, x(b) IS NULL,
y(b) IS NULL
from t1;
geometryfromtext(b) IS NULL geometryfromwkb(b) IS NULL astext(b) IS NULL aswkb(b) IS NULL geometrytype(b) IS NULL centroid(b) IS NULL envelope(b) IS NULL startpoint(b) IS NULL endpoint(b) IS NULL exteriorring(b) IS NULL pointn(b, 1) IS NULL geometryn(b, 1) IS NULL interiorringn(b, 1) IS NULL multipoint(b) IS NULL isempty(b) IS NULL issimple(b) IS NULL isclosed(b) IS NULL dimension(b) IS NULL numgeometries(b) IS NULL numinteriorrings(b) IS NULL numpoints(b) IS NULL area(b) IS NULL glength(b) IS NULL srid(b) IS NULL x(b) IS NULL y(b) IS NULL
within(b, b) IS NULL, contains(b, b) IS NULL, overlaps(b, b) IS NULL,
equals(b, b) IS NULL, disjoint(b, b) IS NULL, touches(b, b) IS NULL,
intersects(b, b) IS NULL, crosses(b, b) IS NULL
from t1;
within(b, b) IS NULL contains(b, b) IS NULL overlaps(b, b) IS NULL equals(b, b) IS NULL disjoint(b, b) IS NULL touches(b, b) IS NULL intersects(b, b) IS NULL crosses(b, b) IS NULL
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
select
point(b, b) IS NULL, linestring(b) IS NULL, polygon(b) IS NULL, multipoint(b) IS NULL,
multilinestring(b) IS NULL, multipolygon(b) IS NULL,
geometrycollection(b) IS NULL
from t1;
point(b, b) IS NULL linestring(b) IS NULL polygon(b) IS NULL multipoint(b) IS NULL multilinestring(b) IS NULL multipolygon(b) IS NULL geometrycollection(b) IS NULL
