first commit for openGauss connector jdbc

docs/documentation/93/outer-joins-escape.md

@@ -0,0 +1,17 @@
+---
+layout: default_docs
+title: Escape for outer joins
+header: Chapter 8. JDBC escapes
+resource: media
+previoustitle: Chapter 8. JDBC escapes
+previous: escapes.html
+nexttitle: Date-time escapes
+next: escapes-datetime.html
+---
+
+You can specify outer joins using the following syntax: `{oj table (LEFT|RIGHT|FULL) OUTER JOIN (table | outer-join)
+ON search-condition  }`
+
+For example :
+
+`rs = stmt.executeQuery( "select * from {oj a left outer join b on (a.i=b.i)} ");`