<!-- ##### SECTION Title ##### -->
Relations and Tuples

<!-- ##### SECTION Short_Description ##### -->


<!-- ##### SECTION Long_Description ##### -->
<para>

</para>


<!-- ##### SECTION See_Also ##### -->
<para>

</para>


<!-- ##### SECTION Stability_Level ##### -->


<!-- ##### SECTION Image ##### -->


<!-- ##### STRUCT GRelation ##### -->
<para>

</para>


<!-- ##### FUNCTION g_relation_new ##### -->
<para>

</para>

@fields: 
@Returns: 


<!-- ##### FUNCTION g_relation_index ##### -->
<para>

</para>

@relation: 
@field: 
@hash_func: 
@key_equal_func: 


<!-- ##### FUNCTION g_relation_insert ##### -->
<para>

</para>

@relation: 
@Varargs: 


<!-- ##### FUNCTION g_relation_exists ##### -->
<para>

</para>

@relation: 
@Varargs: 
@Returns: 


<!-- ##### FUNCTION g_relation_count ##### -->
<para>

</para>

@relation: 
@key: 
@field: 
@Returns: 


<!-- ##### FUNCTION g_relation_select ##### -->
<para>

</para>

@relation: 
@key: 
@field: 
@Returns: 


<!-- ##### FUNCTION g_relation_delete ##### -->
<para>

</para>

@relation: 
@key: 
@field: 
@Returns: 


<!-- ##### FUNCTION g_relation_destroy ##### -->
<para>

</para>

@relation: 


<!-- ##### FUNCTION g_relation_print ##### -->
<para>

</para>

@relation: 


<!-- ##### STRUCT GTuples ##### -->
<para>

</para>

@len: 

<!-- ##### FUNCTION g_tuples_destroy ##### -->
<para>

</para>

@tuples: 


<!-- ##### FUNCTION g_tuples_index ##### -->
<para>

</para>

@tuples: 
@index_: 
@field: 
@Returns: