New PostgreSQL Interface for Cloud Spanner

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  • zetasql

    ZetaSQL - Analyzer Framework for SQL

    I mean the postgres parser (and semantic changes) for ZetaSQL. The zetasql parser is in a file called zetasql/parser/bison_parser.y, I strongly suspect they now have a file called something like zetasql/pgparser/bison_parser.y as well (and much more pervasive changes to support the deeper differences in the dialects).

    This is the lexical structure and syntax docs for the new postgres inteface to cloud spanner:

    And this is the zetasql lexical structure and syntax docs:

    Notice that the new PG docs are an edit of the Zeta ones - evidence that my hypothesis is correct.

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