Re: a very naive question about table names in Postgres

From: Josef Šimánek <josef(dot)simanek(at)gmail(dot)com>
To: Martin Mueller <martinmueller(at)northwestern(dot)edu>
Cc: "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: a very naive question about table names in Postgres
Date: 2021-12-31 21:17:14
Message-ID: CAFp7QwqckDU2EX+NQ=8q=wWfaDJZFEEXF29n-SKMX+Yk5o2kTw@mail.gmail.com
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pá 31. 12. 2021 v 21:28 odesílatel Martin Mueller
<martinmueller(at)northwestern(dot)edu> napsal:
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> I have a very naïve question and don’t know where tp look for the answer. I use Postgres via AquaData Studio as a giant spreadsheet. I create tables and give them names. I see the table names and know how to manipulate them with simple SQL queries.
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> I know that on my Mac the tables are kept in the data directory /Users/martinmueller/Library/Application Support/Postgres/var-13. If I go there I see that internally the tables have numbers. Somewhere in the system there must be a table that maps the name I gave to table X to the numerical inside the database.
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> Where is that mapping and how can I query it? On what page of the documentation do I find the answer?

There is a nice blogpost related.
https://www.2ndquadrant.com/en/blog/postgresql-filename-to-table/

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> I much prefer Postgres to Mysql for a variety of reasons, but mostly for its elegant string functions. But in Mysql it seems to be much easier to keep track of tables.
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> Martin Mueller
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> Professor emeritus of English and Classics
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> Northwestern University
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