{
"query_block": {
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"nested_loop": [
{
"read_sorted_file": {
"filesort": {
"sort_key": "a.position",
"table": {
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"access_type": "ALL",
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}
}
}
},
{
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"used_key_parts": ["option_id", "lang_code"],
"ref": ["demov2026.a.option_id", "const"],
"rows": 1,
"filtered": 100,
"attached_condition": "trigcond(b.lang_code = 'vn')"
}
}
]
}
}