URL functions

Extraction functions

The URL extraction functions extract components from HTTP URLs (or any valid URIs conforming to 2396{.interpreted-text role=“rfc”}). The following syntax is supported:

[protocol:][//host[:port]][path][?query][#fragment]

The extracted components do not contain URI syntax separators such as : or ?.

url_extract_fragment()

url_extract_fragment(url) → varchar

Returns the fragment identifier from url.

url_extract_host()

url_extract_host(url) → varchar

Returns the host from url.

url_extract_parameter()

url_extract_parameter(url, name) → varchar

Returns the value of the f query string parameter named name from url. Parameter extraction is handled in the typical manner as specified by RFC 1866#section-8.2.1.

url_extract_path()

url_extract_path(url) → varchar

Returns the path from url.

url_extract_port()

url_extract_port(url) → bigint

Returns the port number from url.

url_extract_protocol()

url_extract_protocol(url) → varchar

Returns the protocol from url.

url_extract_query()

url_extract_query(url) → varchar

Returns the query string from url.

Encoding functions

url_encode()

url_encode(value) → varchar

Escapes value by encoding it so that it can be safely included in URL query parameter names and values.

url_decode()

url_decode(value) → varchar

Unescapes the URL encoded value. This function is the inverse of url_encode.