diff --git a/reference/pgsql/functions/pg-escape-identifier.xml b/reference/pgsql/functions/pg-escape-identifier.xml
new file mode 100644
index 0000000000..fa176d3d2a
--- /dev/null
+++ b/reference/pgsql/functions/pg-escape-identifier.xml
@@ -0,0 +1,152 @@
+
+
+
+
+
+ pg_escape_identifier
+
+ Escape a identifier for insertion into a text field
+
+
+
+
+ &reftitle.description;
+
+ stringpg_escape_identifier
+ resourceconnection
+ stringdata
+
+
+ pg_escape_identifier escapes a identifier
+ (e.g. table, field names) for quering the database. It returns an
+ escaped identifier string for PostgreSQL
+ server. pg_escape_identifier adds double
+ quotes before and after data. Users should not add double
+ quotes. Use of this function is recommended for identifier
+ parameters in query. For SQL literals (i.e. parameters except
+ bytea), pg_escape_literal
+ or pg_escape_string muse be used. For bytea
+ type fields, pg_escape_bytea must be used
+ instead.
+
+
+
+ This function has internal escape code and can also be used with
+ PostgreSQL 8.4 or less.
+
+
+
+
+
+ &reftitle.parameters;
+
+
+
+ connection
+
+
+ PostgreSQL database connection resource. When
+ connection is not present, the default connection
+ is used. The default connection is the last connection made by
+ pg_connect or pg_pconnect.
+
+
+
+
+ data
+
+
+ A string containing text to be escaped.
+
+
+
+
+
+
+
+
+ &reftitle.returnvalues;
+
+ A string containing the escaped data.
+
+
+
+
+
+
+ &reftitle.examples;
+
+
+ <function>pg_escape_identifier</function> example
+
+
+]]>
+
+
+
+
+
+
+ &reftitle.seealso;
+
+
+ pg_escape_literal
+ pg_escape_bytea
+ pg_escape_string
+
+
+
+
+
+
diff --git a/reference/pgsql/functions/pg-escape-literal.xml b/reference/pgsql/functions/pg-escape-literal.xml
new file mode 100644
index 0000000000..1520a70984
--- /dev/null
+++ b/reference/pgsql/functions/pg-escape-literal.xml
@@ -0,0 +1,153 @@
+
+
+
+
+
+ pg_escape_literal
+
+ Escape a literal for insertion into a text field
+
+
+
+
+ &reftitle.description;
+
+ stringpg_escape_literal
+ resourceconnection
+ stringdata
+
+
+ pg_escape_literal escapes a literal for
+ querying the PostgreSQL database. It returns an escaped literal in
+ the PostgreSQL format. pg_escape_literal adds
+ quotes before and after data. Users should not add quotes. Use of
+ this function is recommended instead
+ of pg_escape_string. If the type of the
+ column is bytea, pg_escape_bytea must be used
+ instead. For escaping identifiers (e.g. table, field
+ names), pg_escape_identifier must be used.
+
+
+
+ This function has internal escape code and can also be used with
+ PostgreSQL 8.4 or less.
+
+
+
+
+
+ &reftitle.parameters;
+
+
+
+ connection
+
+
+ PostgreSQL database connection resource. When
+ connection is not present, the default connection
+ is used. The default connection is the last connection made by
+ pg_connect or pg_pconnect.
+
+
+
+
+ data
+
+
+ A string containing text to be escaped.
+
+
+
+
+
+
+
+
+ &reftitle.returnvalues;
+
+ A string containing the escaped data.
+
+
+
+
+
+
+ &reftitle.examples;
+
+
+ <function>pg_escape_literal</function> example
+
+
+]]>
+
+
+
+
+
+
+ &reftitle.seealso;
+
+
+ pg_escape_identifier
+ pg_escape_bytea
+ pg_escape_string
+
+
+
+
+
+
diff --git a/reference/pgsql/functions/pg-escape-string.xml b/reference/pgsql/functions/pg-escape-string.xml
index 8f05512f0f..f06bdfeff1 100644
--- a/reference/pgsql/functions/pg-escape-string.xml
+++ b/reference/pgsql/functions/pg-escape-string.xml
@@ -5,7 +5,7 @@
pg_escape_string
- Escape a string for insertion into a text field
+ Escape a string for query
@@ -17,12 +17,15 @@
stringdata
- pg_escape_string escapes a string for
- insertion into the database. It returns an escaped string in the
- PostgreSQL format. Use of this function is recommended instead of
- addslashes. If the type of the column
- is bytea, pg_escape_bytea must be used
- instead.
+ pg_escape_string escapes a string for querying
+ the database. It returns an escaped string in the PostgreSQL
+ format without quotes. pg_escape_literal is
+ more preffered way to escape SQL parameters for PostgreSQL.
+ addslashes must not be used with PostgreSQL.
+ If the type of the column is
+ bytea, pg_escape_bytea must be used
+ instead. pg_escape_identifier must be used to
+ escape identifiers (e.g. table names, field names)