_filter
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Aidbox offers partial support for the FHIR _filter API. However, we recommend using other search capabilities, such as or , for complex queries. They offer better SQL expressiveness and performance.
eq
+
+**
+
+*
n/a
+***
ne
-
+**
+
-
n/a
+***
co
+
-
-
n/a
n/a
n/a
sw
+
n/a
n/a
n/a
n/a
n/a
ew
+
n/a
n/a
n/a
n/a
n/a
gt/ge/lt/le
-
+
+
n/a
n/a
+***
po
n/a
n/a
-
n/a
n/a
n/a
pr****
+
+
+
+
+
+
ss
n/a
n/a
n/a
-
n/a
n/a
sb
n/a
n/a
n/a
-
n/a
n/a
in
n/a
n/a
n/a
-
n/a
n/a
re
n/a
n/a
n/a
n/a
-
n/a
* token search is case sensitive
** number search doesn't support implicit precision
*** support only numbers, not system with code
**** available since version 2503
Aidbox supports forward chained search parameters in _filter query and dot expressions.
You can compose logical expressions using parentheses
Aidbox requires specifying chain targets explicitly: