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+DTail Query Language
+====================
+
+The query language allows you to run mapreduce queries on log files. This page intends to be a reference to the language.
+
+## Prerequisites
+
+For this to work, DTail needs to understand your log format. DTail already understands its own log format. You can have a look at all examples of the [examples](./examples.md) page using `-query` (these would be all examples of the `dmap` command, and some examples using the `dtail` command).
+
+DTail also ships with a generic log format, which only allows you to run very basic queries. Check out the [log formats](./logformats.md) documentation for this.
+
+To implement your own log format, please also check out the [log formats](./logformats.md) documentation.
+
+## The complete language
+
+```
+TODO: Add EBNF
+```