1 测试表数据
SELECT
relative_label_content
FROM
frk_s.label_cor_gene
relative_label_content
——
AA
BB
CC
2 列转行写法
写法1：（string_agg）
SELECT
frwybs,
string_agg (relative_label_content, ‘,’) as relative_label_content
FROM
frk_s.label_cor_gene
GROUP BY
frwybs
relative_label_content
————
AA,BB,CC
写法2： array_to_string(ARRAY_AGG (text),’,’)
SELECT
frwybs,
array_to_string(
ARRAY_AGG (DISTINCT relative_label_content),
‘,’
) as labels_content
FROM
frk_s.label_cor_gene
GROUP BY
frwybs
labels_content
————
AA,BB,CC
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