::= | |

| log_stream_fp_selector ::= "{" *( "," ) "}" log_stream_selector ::= *() log_stream_selector_rule ::= label ::= ( | "_") *( | "." | "_" | ) operator ::= quoted_str ::= () | () | | log_pipeline ::= | | | | line_filter_expression ::= line_filter_operator ::= parser_expression ::= "|" parser_fn_name ::= opt_parameters ::= *("," ) | parameter ::= "=" | | label_filter_pipeline ::= "|" complex_label_filter_expression ::= ( | ) *( | ) bracketed_label_filter_expression ::= "(" ")" and_or ::= "and" | "or" label_filter_expression ::= | string_label_filter_expression ::= number_label_filter_expression ::= number_operator ::= number_value ::= | | duration_value ::= ("ns"|"us"|"ms"|"s"|"m"|"h"|"d"|"w") bytes_value ::= ("b"|"kib"|"kb"|"mb"|"mib"|"gib"|"gb"|"lib"|"tb"|"pib"|"pb"|"eib"|"eb") line_format_fn ::= "line_format_native" | "line_format" line_format_expression ::= "|" labels_format_expression ::= "|" "label_format" *( "," ) labels_format_expression_param ::= | label_rename_param ::= "=" label_inject_param ::= "=" log_range_aggregation ::= "(" "[" "]" ")" log_range_aggregation_fn ::= aggregation_operator ::= ( | ) postfix_agg_operator ::= "(" [ "," ] ( | ) ")" [ ] prefix_agg_operator ::= "(" [ "," ] ( | ) ")" aggregation_operator_fn ::= opt_by_without ::= | req_by_without ::= "(" ")" by_without ::= "by" | "without" label_list ::= *("," ) unwrap_expression ::= unwrap_statement ::= "|" ("unwrap" 1* | ) unwrap_function ::= "(" [ ","] "[" "]" ")" [ ] scalar_param ::= unwrap_fn ::= req_by_without_unwrap ::= "(" ")" by_without_unwrap ::= "by" | "without" agg_statement ::= ( | | | | ) [ ] compared_agg_statement_cmp ::= unwrap_value_statement ::= "unwrap_value" parameterized_unwrapped_expression ::= "("",""[""]"")" [ ] [ ] parameterized_unwrapped_expression_fn ::= parameterized_expression ::= "("","(|)")" [ ] parameter_value ::= parameterized_expression_fn ::= summary ::= "summary" "(" ")"