comparison - Compare values as doubles in a JCR-SQL2 query -


i trying compare jcr node's string properties double value in jcr-sql2. comparing values strings.

for example:

select * [nodex] x  x.propertyy <= 20.50

here propertyy string in definition.

i tried case still not work. can compare double without changing property definition?

standard jcr-sql2 has cast(value double) expression, unfortunately can used on right-hand side of expression. yes, jcr-sql2 not flexible normal sql.

to knowledge, there not valid standard way convert property value double before running comparison. if cast double value string, you'll lexicographical comparison -- of course won't useful.

i'm not sure other implementations, modeshape convert property value double when property residual property, since residual property has no definition , therefore not type. it's quite other implementations not behave this.


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