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2889fd23be
These routines are used by the text and CSV formats to send an output
representation of a string, applying quotes if required. This is
similar to 95fb5b4902, reducing the number of "if" branches that need
to be checked on a per-row basis when sending representation of fields
in text or CSV mode.
While on it, this simplifies the signature of CopyAttributeOutCSV() as
it is possible to know that an attribute is alone on a line thanks to
CopyToState. Headers should not use quotes, even if forced at query
level.
Extracted from a larger patch by the same author.
Author: Sutou Kouhei
Discussion: https://postgr.es/m/20231204.153548.2126325458835528809.kou@clear-code.com
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. Copyright and license information can be found in the file COPYRIGHT. General documentation about this version of PostgreSQL can be found at: https://www.postgresql.org/docs/devel/ In particular, information about building PostgreSQL from the source code can be found at: https://www.postgresql.org/docs/devel/installation.html The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.