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188 | 188 | <para> |
189 | 189 | Of the two operator classes for type <type>point</type>, |
190 | 190 | <literal>quad_point_ops</literal> is the default. <literal>kd_point_ops</literal> |
191 | | - supports the same operators but uses a different index data structurewhich |
| 191 | + supports the same operators but uses a different index data structurethat |
192 | 192 | may offer better performance in some applications. |
193 | 193 | </para> |
194 | 194 |
|
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268 | 268 | <function>leaf_consistent</function> additionally returns a <type>boolean</type> result. |
269 | 269 | The methods must not modify any fields of their input structs. In all |
270 | 270 | cases, the output struct is initialized to zeroes before calling the |
271 | | - user-defined method.Optional sixth method <function>compress</function> |
272 | | - accepts datum to be indexed as the only argument and returns value suitable |
273 | | - for physical storage in leaf tuple. |
| 271 | + user-defined method.The optional sixth method <function>compress</function> |
| 272 | + accepts datum to be indexed as the only argument and returnsavalue suitable |
| 273 | + for physical storage inaleaf tuple. |
274 | 274 | </para> |
275 | 275 |
|
276 | 276 | <para> |
@@ -423,9 +423,9 @@ typedef struct spgChooseOut |
423 | 423 | type that was to be inserted into the index. |
424 | 424 | <structfield>leafDatum</structfield> is a value of |
425 | 425 | <structname>spgConfigOut</structname>.<structfield>leafType</structfield> |
426 | | - type which is initiallyan result of method |
| 426 | + type, which is initiallya result of method |
427 | 427 | <function>compress</function> applied to <structfield>datum</structfield> |
428 | | - when method <function>compress</function> is provided, or same value as |
| 428 | + when method <function>compress</function> is provided, orthesame value as |
429 | 429 | <structfield>datum</structfield> otherwise. |
430 | 430 | <structfield>leafDatum</structfield> can change at lower levels of the tree |
431 | 431 | if the <function>choose</function> or <function>picksplit</function> |
@@ -820,7 +820,7 @@ typedef struct spgLeafConsistentOut |
820 | 820 | Converts the data item into a format suitable for physical storage in |
821 | 821 | a leaf tuple of index page. It accepts |
822 | 822 | <structname>spgConfigIn</structname>.<structfield>attType</structfield> |
823 | | - value andreturn |
| 823 | + value andreturns |
824 | 824 | <structname>spgConfigOut</structname>.<structfield>leafType</structfield> |
825 | 825 | value. Output value should not be toasted. |
826 | 826 | </para> |
|