pgRouting Manual (2.0.0)

pgr_quote_ident

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pgr_quote_ident

Nom

pgr_quote_ident — Quotes the input text to be used as an identifier in an SQL statement string.

Note

This function is intended for the developer’s aid.

Synopsis

Returns the given identifier idname suitably quoted to be used as an identifier in an SQL statement string.

text pgr_quote_ident(text idname);

Description

Parameters

idname:text Name of an SQL identifier. Can include . dot notation for schemas.table identifiers

Returns the given string suitably quoted to be used as an identifier in an SQL statement string.

  • When the identifier idname contains on or more . separators, each component is suitably quoted to be used in an SQL string.

Histoire

  • Nouveau depuis la version 2.0.0

Exemples

Everything is lower case so nothing needs to be quoted.

SELECT pgr_quote_ident('the_geom');

pgr_quote_ident
---------------
   the_geom
(1 row)


SELECT pgr_quote_ident('public.edge_table');

  pgr_quote_ident
-------------------
 public.edge_table
(1 row)

The column is upper case so its double quoted.

SELECT pgr_quote_ident('edge_table.MYGEOM');

   pgr_quote_ident
-------------------
 edge_table."MYGEOM"
(1 row)

SELECT pgr_quote_ident('public.edge_table.MYGEOM');

       pgr_quote_ident
---------------------------
 public.edge_table."MYGEOM"
(1 row)

The schema name has a capital letter so its double quoted.

SELECT pgr_quote_ident('Myschema.edge_table');

    pgr_quote_ident
----------------------
 "Myschema".edge_table
(1 row)

Ignores extra . separators.

SELECT pgr_quote_ident('Myschema...edge_table');

   pgr_quote_ident
---------------------
 "Myschema".edge_table
(1 row)

Voir aussi

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