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Update create_external_table.sgml
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tuhaihe authored Dec 13, 2024
1 parent aebf9da commit 242ddbb
Showing 1 changed file with 4 additions and 4 deletions.
8 changes: 4 additions & 4 deletions doc/src/sgml/ref/create_external_table.sgml
Original file line number Diff line number Diff line change
Expand Up @@ -145,7 +145,7 @@ CREATE WRITABLE EXTERNAL WEB [TEMPORARY | TEMP] TABLE table_name

<para>
You may specify multiple external data sources or URIs (uniform resource identifiers)
with the <literal>LOCATION</literal> clause up to the number of primary segment instances
with the <literal>LOCATION</literal> clause — up to the number of primary segment instances
in your Apache Cloudberry array. Each URI points to an external data file or other data
source. These URIs do not need to exist prior to defining an external table (<command>CREATE EXTERNAL TABLE</command>
does not validate the URIs specified). However you will get an error if they cannot be found
Expand All @@ -159,7 +159,7 @@ CREATE WRITABLE EXTERNAL WEB [TEMPORARY | TEMP] TABLE table_name
</para>

<para>
gpfdist If using the <literal>gpfdist://</literal> protocol, you must have the
gpfdist — If using the <literal>gpfdist://</literal> protocol, you must have the
Cloudberry file distribution program (<literal>gpfdist</literal>) running on the host where the external
data files reside. This program points to a given directory on the file host and
serves external data files to all Apache Cloudberry segments in parallel.
Expand All @@ -169,7 +169,7 @@ CREATE WRITABLE EXTERNAL WEB [TEMPORARY | TEMP] TABLE table_name
</para>

<para>
file If using the <literal>file://</literal> protocol the external data file(s)
file — If using the <literal>file://</literal> protocol the external data file(s)
must reside on a segment host in a location accessible by the Cloudberry super user
(gpadmin). The number of URIs specified corresponds to the number of segment
instances that will work in parallel to access the external table. So for
Expand All @@ -184,7 +184,7 @@ CREATE WRITABLE EXTERNAL WEB [TEMPORARY | TEMP] TABLE table_name
</para>

<para>
http If using the <literal>http://</literal> protocol the external data file(s)
http — If using the <literal>http://</literal> protocol the external data file(s)
must reside on a web server that is accessible by the Cloudberry segment hosts.
The number of URIs specified corresponds to the number of segment instances
that will work in parallel to access the external table. So for example,
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