1
在RMySQL包中使用dbWriteTable()时,无论值如何,逻辑值均写为0。我希望,真正的价值将返回1:RMySQL - dbWriteTable()将TRUE逻辑写为0
# Setup
# con is a valid MySQLConnection object
> df <- data.frame(string = 'Testing Logical Values',
t_lgl = TRUE,
f_lgl = FALSE,
stringsAsFactors = FALSE)
> df
string t_lgl f_lgl
1 Testing Logical Values TRUE FALSE
> class(df[,2])
[1] "logical"
# Test
# This schema has no tables until dbWriteTable() is called
> dbWriteTable(con,'test_table',df)
[1] TRUE
# Result
> dbReadTable(con,'test_table')
string t_lgl f_lgl
1 Testing Logical Values 0 0
> class(dbReadTable(con,'test_table')[,2])
[1] "integer"
应该不是t_lgl返回值1,因为它是真实的,并传递到dbWriteTable()作为一个逻辑?