Query rewrite engine 3.0 (part 1 of many) #637
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Refactor the query parser to be completely recursive. Use the same parser for `SELECT` and `DELETE` queries. This adds support for extracting the sharding key filter from pretty much anywhere in the query, as long as it follows our supported format: ```sql key = $1 OR key IN ($1, $2, $3) OR key = ANY($1) ``` fix #653 TODOs: 1. Use new parser for `UPDATE` and `INSERT` statements. Requires integration with #637 (split rewrite engine from parser).
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pgdog.unique_id()pretty much anywhere in the queryunique_idgeneration is now sync, so it can be used anywherePREPARE/EXECUTEsupport into new rewrite engineINSERTsplitting into new engine (not ready)