The geometry you are creating or manipulating contains more points than the max_points_in_geometry limit, so MySQL aborts the statement.
ER_GIS_MAX_POINTS_IN_GEOMETRY_OVERFLOWED occurs when a MySQL GIS function gets a geometry larger than the max_points_in_geometry limit. Lower the point count with ST_Simplify or raise max_points_in_geometry to fix the error.
ER_GIS_MAX_POINTS_IN_GEOMETRY_OVERFLOWED
MySQL raises ER_GIS_MAX_POINTS_IN_GEOMETRY_OVERFLOWED when a GIS function receives a geometry that contains more coordinate points than the limit set by the max_points_in_geometry system variable.
The error safeguards server resources because very large geometries can consume excessive memory and CPU during spatial calculations.
The error is triggered when importing or constructing polygons, linestrings, or multipolygons that exceed the permitted point count.
Operations like ST_Union, ST_Buffer, and bulk loads from GeoJSON can silently create objects with millions of vertices, overflowing the default 65536 point ceiling.
Solve the problem by simplifying or splitting the geometry so the point count falls below the limit, or by raising the limit temporarily or permanently.
Increasing the limit requires SUPER or SYSTEM_VARIABLES_ADMIN privileges and must balance performance risks.
During GeoJSON imports, pre-process files with ogr2ogr -simplify to reduce vertices before LOAD DATA.
When analytical queries merge many parcels, apply ST_Simplify or ST_SubDivide in intermediate steps to keep geometries small.
Monitor point counts with ST_NumPoints after each transformation step and fail early in application code if the result nears the threshold.
Set max_points_in_geometry to the lowest safe value for your workload and enforce schema constraints that restrict geometry size.
ER_GIS_INVALID_DATA appears when WKB or WKT strings are malformed rather than oversized; validate input with ST_IsValid.
ER_GIS_UNKNOWN_ERROR is a catch-all for internal spatial failures and can often be mitigated by upgrading to the latest minor release.
Inserting or updating a polygon with more than 65536 vertices because the data came from a high-resolution shapefile.
Merging thousands of small geometries into one multipolygon during ETL, resulting in an object with millions of points.
Running ST_Buffer on a detailed coastline line string, which multiplies point count.
Accidentally loading compressed GeoJSON as plain text, causing a single row to hold the entire file as one geometry.
Raised when geometry data is malformed or violates spatial rules.
Generic spatial error for internal failures; upgrade or examine input.
Appears during spatial aggregations when SELECT columns are not in GROUP BY.
No - the variable must be greater than zero. Setting it too high can cause memory exhaustion.
No - you can SET GLOBAL at runtime, but the change is not persisted unless added to my.cnf.
The limit and error were introduced in MySQL 5.7.8. Earlier versions have no built-in cap.
Galaxy warns you when ST_NumPoints exceeds max_points_in_geometry and suggests a fix via the AI copilot before you run the query.
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