Using @timestamp in a SQL Query

[mickmill54 (Mick Miller)]

I am trying the following and can't figure it out.

POST _xpack/sql?format=txt
{
"query":"select @timestamp, metricset.module, metricset.name FROM metricbeat"
}

This does not work and returns below. Is there a trip using @timestamp in the column list? I tried CAST, and FORMAT, but no luck.

---

Error

"error": {
"root_cause": [
{
"type": "parsing_exception",
"reason": "line 1:8: mismatched input '[' expecting {'(', 'ANALYZE', 'ANALYZED', 'CAST', 'CATALOGS', 'COLUMNS', 'CONVERT', 'DEBUG', 'EXECUTABLE', 'EXISTS', 'EXPLAIN', 'EXTRACT', 'FALSE', 'FORMAT', 'FUNCTIONS', 'GRAPHVIZ', 'LEFT', 'MAPPED', 'MATCH', 'NOT', 'NULL', 'OPTIMIZED', 'PARSED', 'PHYSICAL', 'PLAN', 'RIGHT', 'RLIKE', 'QUERY', 'SCHEMAS', 'SHOW', 'SYS', 'TABLES', 'TEXT', 'TRUE', 'TYPE', 'TYPES', 'VERIFY', '{FN', '{D', '{T', '{TS', '{GUID', '+', '-', '', '?', STRING, INTEGER_VALUE, DECIMAL_VALUE, IDENTIFIER, DIGIT_IDENTIFIER, QUOTED_IDENTIFIER, BACKQUOTED_IDENTIFIER}"
}
],
"type": "parsing_exception",
"reason": "line 1:8: mismatched input '[' expecting {'(', 'ANALYZE', 'ANALYZED', 'CAST', 'CATALOGS', 'COLUMNS', 'CONVERT', 'DEBUG', 'EXECUTABLE', 'EXISTS', 'EXPLAIN', 'EXTRACT', 'FALSE', 'FORMAT', 'FUNCTIONS', 'GRAPHVIZ', 'LEFT', 'MAPPED', 'MATCH', 'NOT', 'NULL', 'OPTIMIZED', 'PARSED', 'PHYSICAL', 'PLAN', 'RIGHT', 'RLIKE', 'QUERY', 'SCHEMAS', 'SHOW', 'SYS', 'TABLES', 'TEXT', 'TRUE', 'TYPE', 'TYPES', 'VERIFY', '{FN', '{D', '{T', '{TS', '{GUID', '+', '-', '', '?', STRING, INTEGER_VALUE, DECIMAL_VALUE, IDENTIFIER, DIGIT_IDENTIFIER, QUOTED_IDENTIFIER, BACKQUOTED_IDENTIFIER}",
"caused_by": {
"type": "input_mismatch_exception",
"reason": null
}
},
"status": 400
}

[Andrei_Stefan]

@mickmill54 that's a strange error mentioning the square bracket. In any case, the correct command would be:

{
    "query":"select \"@timestamp\", metricset.module, metricset.name FROM metricbeat"
}

Curious on what version you tried this on?