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---

--- Fix SQL function that were defined with the same number of

--- arguments and the same argument names, but receiving different

--- types (integers vs. timespans). This is fine, as long the

--- functions are only called from SQL and positional arguments. When

--- calling from Tcl, this does not work.

---

--- This change uses in cases, where offsets are specified as

--- intervals the suffix "_interval" for the variable names, keeping

--- the names without this suffix for integer arguments (for Oracle

--- compatibility).

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