Changes between Version 3 and Version 4 of rfc21_ogrsqlcast

Timestamp:

Jan 26, 2008, 3:58:27 AM (16 years ago)

Author:

tamas

Comment:

--

rfc21_ogrsqlcast

@@ -86 +86 @@
 To implement the addition the following changes should be made in the OGR codebase:
 
-1. In swq.h I'll have to add to 3 fields to swq_col_def to hold the field_alias the target_type
-and the field_length, and add SWQ_DATETIME to the swq_field_type enum. 
+1. In swq.h I'll have to add to 4 fields to swq_col_def to hold the field_alias the target_type, the field_length, and field_precision
 
-2. In swq.c I'll have to change swq_select_preparse to take care of the field alias and the
+2. In swq.h SWQ_DATETIME will be added to swq_field_type enum. 
+
+3. In swq.c I'll have to change swq_select_preparse to take care of the field alias and the
 CAST specification.
 
-3. A new function (swq_parse_typename) will be added to parse the supported typenames.
+4. A new function (swq_parse_typename) will be added to parse the supported typenames.
 
-4. In ogr_gensql.cpp the .ctor of OGRGenSQLResultsLayer will be changed to set up the field name and the
+5. In ogr_gensql.cpp the .ctor of OGRGenSQLResultsLayer will be changed to set up the field name and the
 field length to the target data source 
 
-5. In ogr_gensql.cpp TranslateFeature will be modified to take care of the type change if specified.
+6. In ogr_gensql.cpp TranslateFeature will be modified to take care of the type change if specified.
 
 == Backward Compatibility ==