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To enable compile-time checking and binding an EDM query schema must specify which extension schemata it depends on by specifying the extension as follows in the GLOBAL section:
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QUERY_SCHEMA MyQueries FOR IFC4; GLOBAL DECLARE trg INSTANCE OF IFC4; DECLARE ex1 INSTANCE OF EXPRESS_EXTENSION_SCHEMA EEX_1001; -- implicit: FOR IFC4; -- ... addition declarations ... END_GLOBAL; -- ... normal query schema syntax ... END_QUERY_SCHEMA; |
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