尝试在Postgres中执行以下查询时出现以下错误。
my_df <- structure(list(document = c(1L, 1L, 1L, 2L, 2L, 2L),
topic = c(1L, 2L, 3L, 1L, 2L, 3L),
gamma = c(0.932581726, 0.015250915, 0.009929329,
0.032864538, 0.012939786, 0.13281681)),
class = "data.frame", row.names = c(NA, -6L))
此列具有以下case语句的输出：
psycopg2.ProgrammingError: column "sales_ind" is of type integer but expression is of type character varying
HINT: You will need to rewrite or cast the expression.
Column name : sales_ind
Data_type : int
任何人都可以提供帮助。感谢..