|
206 | 206 | <para> |
207 | 207 | Of the two operator classes for type <type>point</type>, |
208 | 208 | <literal>quad_point_ops</literal> is the default. <literal>kd_point_ops</literal> |
209 | | - supports the same operators but uses a different index data structurewhich |
| 209 | + supports the same operators but uses a different index data structurethat |
210 | 210 | may offer better performance in some applications. |
211 | 211 | </para> |
212 | 212 | <para> |
|
292 | 292 | <function>leaf_consistent</function> additionally returns a <type>boolean</type> result. |
293 | 293 | The methods must not modify any fields of their input structs. In all |
294 | 294 | cases, the output struct is initialized to zeroes before calling the |
295 | | - user-defined method.Optional sixth method <function>compress</function> |
296 | | - accepts datum to be indexed as the only argument and returns value suitable |
297 | | - for physical storage in leaf tuple. |
| 295 | + user-defined method.The optional sixth method <function>compress</function> |
| 296 | + accepts datum to be indexed as the only argument and returnsavalue suitable |
| 297 | + for physical storage inaleaf tuple. |
298 | 298 | </para> |
299 | 299 |
|
300 | 300 | <para> |
@@ -447,9 +447,9 @@ typedef struct spgChooseOut |
447 | 447 | type that was to be inserted into the index. |
448 | 448 | <structfield>leafDatum</structfield> is a value of |
449 | 449 | <structname>spgConfigOut</structname>.<structfield>leafType</structfield> |
450 | | - type which is initiallyan result of method |
| 450 | + type, which is initiallya result of method |
451 | 451 | <function>compress</function> applied to <structfield>datum</structfield> |
452 | | - when method <function>compress</function> is provided, or same value as |
| 452 | + when method <function>compress</function> is provided, orthesame value as |
453 | 453 | <structfield>datum</structfield> otherwise. |
454 | 454 | <structfield>leafDatum</structfield> can change at lower levels of the tree |
455 | 455 | if the <function>choose</function> or <function>picksplit</function> |
@@ -868,7 +868,7 @@ typedef struct spgLeafConsistentOut |
868 | 868 | Converts the data item into a format suitable for physical storage in |
869 | 869 | a leaf tuple of index page. It accepts |
870 | 870 | <structname>spgConfigIn</structname>.<structfield>attType</structfield> |
871 | | - value andreturn |
| 871 | + value andreturns |
872 | 872 | <structname>spgConfigOut</structname>.<structfield>leafType</structfield> |
873 | 873 | value. Output value should not be toasted. |
874 | 874 | </para> |
|