Added public files
Roughly added all public files. Probably missed some, though.
diff --git a/doc/efun/pg_query b/doc/efun/pg_query
new file mode 100644
index 0000000..d95f2cc
--- /dev/null
+++ b/doc/efun/pg_query
@@ -0,0 +1,28 @@
+OPTIONAL
+SYNOPSIS
+ #include <pgsql.h>
+
+ int pg_query (string query)
+ int pg_query (string query, int flags)
+
+DESCRIPTION
+ Queue a new query <query> to the database connection on the current
+ object. Return the unique id of the query. The query result itself
+ will be passed as argument to the callback function.
+
+ <flags> can be one of these values:
+ PG_RESULT_ARRAY: Pass the query result as array.
+ PG_RESULT_MAP: Pass the query result as mapping.
+
+ The function is available only if the driver is compiled with
+ PostgreSQL support. In that case, __PGSQL__ is defined.
+
+ The efun triggers a privilege violation ("pgsql", "pg_query").
+
+HISTORY
+ Added in 3.3.445.
+ LDMud 3.3.640 added the privilege violation.
+
+SEE ALSO
+ pgsql(C), pg_connect(E), pg_conv_string(E), pg_pending(E), pg_close(E),
+ privilege_violation(M)