SAPSQL_FIELDLIST_AVG_TYPE is an ABAP runtime error which you may come across when using or developing within an SAP system. See below for the standard details explaining what it means and how you can avoid or fix this runtime error.
Short Dump Classification: A - ABAP Programming Error
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Aggregate function AVG with non-numerical argument
Please see abap error for more details about the possible cause of this runtime error and how it could be avoided.
The running ABAP program attempted to execute an Open SQL statement that
contains a field list in which the types of the database fields could
only be determined as early as to runtime of the program. The field list
contains the aggregate function AVG( <runtime parameter>). The parameter of the
aggregate function "AVG" must have a numeric type (I, P, F, b (INT1) or
s (INT2)). However, in this particular case, the field <runtime parameter> has the
non-numeric type <runtime parameter>.
Please see abap error for more details about the possible cause of this runtime error and how it could be avoided.
SAPSQL_FIELDLIST_AVG_TYPE - sapsql fieldlist avg type SAPSQL_FETCH_WRONG_INTOLIST - sapsql fetch wrong intolist SAPSQL_FETCH_WA_INTO_MODE - sapsql fetch wa into mode SAPSQL_FETCH_WA_INCOMPATIBLE - sapsql fetch wa incompatible SAPSQL_FETCH_RSQL_STACK_EMPTY - sapsql fetch rsql stack empty SAPSQL_ESCAPE_WITH_POOLTABLE - sapsql escape with pooltable