Postgresql 如何使用返回记录集的函数运行嵌套查询？

如何使用返回记录集的函数运行嵌套查询

我想做的是解析文本字段并将其拆分为词干

应该是这样的

with strings as (
    select text
    from messages
    where channel_id = 12345 and text like '%#%'
)
select distinct token
from ts_debug('russian', strings.text)
where alias = 'word';

但显然它不起作用，因为ts_debug返回记录集

如何执行此操作？

从字符串中选择文本

还是加入

with strings as (
    select text
    from messages
    where channel_id = 12345 and text like '%#%'
)
select distinct token
from strings 
INNER JOIN ts_debug('russian', strings.text) AS tsd ON true
where alias = 'word';

使用横向连接：

with strings as (
    select text
    from messages
    where channel_id = 12345 and text like '%#%'
)
select distinct td.token
from strings 
  cross join lateral ts_debug('russian', strings.text) as td
where alias = 'word';

with strings as (
    select text
    from messages
    where channel_id = 12345 and text like '%#%'
)
select distinct td.token
from strings 
  cross join lateral ts_debug('russian', strings.text) as td
where alias = 'word';