Hi,
Mi index has 17Gb of storage size
But where I executed (2 times !) the "update by query" querey to copy a field in an other one the size is increased :
The Docs count doesnt change.

POST jp_data_stk_mouv/_update_by_query?conflicts=proceed&refresh=true
{
"query" : {
"match_all" : {}
},
"script" : "ctx._source.ma_date = ctx._source.DATE_STAT;"
}
My index pattern (for this index) has it s data duplicated when I perform some metrics.
Any idea why I get this please?