All geometries created from Geometry byte string Geometry *Geometry::construct on the server are created using little endian wkb_ndr, although there is the bit for big endian wkb_xdr and error message on the server ER_GIS_DATA_WRONG_ENDIANESS that is not used.
There are also some checks for big endian, not needed at all wkb_get_double () and wkb_get_uint():
wkb_get_uint()
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if (bo != Geometry::wkb_xdr)
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return uint4korr(ptr);
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So or we need to remove the endian or we need to conclude when the geometry needs handling of byte order.
Something like this should be the patch for a function
--- a/sql/spatial.cc
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+++ b/sql/spatial.cc
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@@ -20,6 +20,7 @@
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#include "spatial.h"
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#include "gstream.h" // Gis_read_stream
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#include "sql_string.h" // String
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+#include <mysqld_error.h>
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/* This is from item_func.h. Didn't want to #include the whole file. */
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double my_double_round(double value, longlong dec, bool dec_unsigned,
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@@ -267,6 +268,13 @@ Geometry *Geometry::construct(Geometry_buffer *buffer,
|
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if (data_len < SRID_SIZE + WKB_HEADER_SIZE) // < 4 + (1 + 4)
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return NULL;
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+
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+ // Check for byte order
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+ if (uint4korr(data + SRID_SIZE) == Geometry::wkb_xdr)
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+ {
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+ my_error(ER_GIS_DATA_WRONG_ENDIANESS, MYF(0));
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+ return NULL;
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+ }
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/* +
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Issue is catched with MDEV-26161, where based on output of MySQL ER_GIS_DATA_WRONG_ENDIANESS is obtained (why?)
- blocks
-
MDEV-26161
crash in Gis_point::calculate_haversine
-
-
Stalled
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