Shell Hive - 识别整个 Hive 数据库中的列

Question

如果我将第一行更改为 hive -S -e 'show databases like 'abc_xyz%''|，则以下代码不会进入循环你能帮忙解决这个问题吗？`

hive -S -e 'show databases'|
    while read database
    do
       eval "hive -S -e 'show tables in $database'"|
       while read line
       do
    if eval "hive -S -e 'describe $database.$line'"| grep -q "<column_name>"; then
      output="Required table name: $database.$line"'\n';
    else
    output=""'\n';
    
    fi
    echo -e "$output"
     done
    done```

Answer 1

show databases command 模式中的通配符只能是任何字符的“*”或“|”选择 Hive < 4.0.0.

例如像这样：

show databases like 'abc_xyz*|bcd_xyz*'

SQL-style patterns '%' for any character(s), and '_' for a single character work only since Hive 4.0.0

Shell Hive - 识别整个 Hive 数据库中的列

Shell Hive - Identify a column in entire Hive Database

bash

shell

hive

hiveql