I am using this POSTGIS query to generate MVT tiles and visualize large point layer data. When zooming in these tiles starts appearing visually but leads to drastic changes in number of tiles visible at next zoom level. This lead to reports of data inaccuracy. Tiles at lower zoom level are not returning any data even though there are millions of data in that bounding box. 1st image is when i try to see my map one zoom level up 2nd image is when i move my zoom level to one zoom level down
My query looks like this
ST_AsMVT(tile, 'table', 4096, 'geom')
FROM (
SELECT
ST_AsMVTGeom(
ST_Transform(ST_CurveToLine("geometry"), 3857),
ST_TileEnvelope($1::integer, $2::integer, $3::integer),
4096, 64, true
) AS geom
, "ogc_fid"
FROM
table
WHERE
"geometry" && ST_Transform(ST_TileEnvelope($1::integer, $2::integer, $3::integer, margin => 0.015625), 4326)
) AS tile


Increasing the
tile_extentto4096000and reducingbuffersize to0helped me getting desired output. Along with it i also removed the margin from tile envelope. So the updated code looks like