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我有一个查询，我想做，它是一个 SELECT GROUP BY 的 INSERT，但我收到错误:
ERROR: INSERT has more target columns than expressions
LINE 15: INSERT INTO "KPI_MEASURE" (id, created_at, kpi_project_id, k...
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HINT: The insertion source is a row expression containing the same number of columns expected by the INSERT. Did you accidentally use extra parentheses?
我搜索了这个错误，但我发现，如果行数不匹配，就会发生这个错误，但对于下面的查询，行数相同。
Postgres SQL 查询:
INSERT INTO "KPI_MEASURE" (
id,
created_at,
kpi_project_id,
kpi_frequency_id,
kpi_metric_id,
branch,
value
)
SELECT (
nextval('"KPI_MEASURE_ID_seq"'::regclass),
now(),
kpi_project.id,
kpi_measure.kpi_frequency_id,
kpi_metric.id ,
kpi_measure.branch ,
sum(kpi_measure.value)
)
FROM "KPI_MEASURE" kpi_measure
INNER JOIN "KPI_METRIC" kpi_metric ON kpi_measure.kpi_metric_id = kpi_metric.id
INNER JOIN "KPI_PROJECT" kpi_project ON kpi_measure.kpi_project_id = kpi_project.id
INNER JOIN "KPI_AGGREGATION_PROJECT" kpi_agg_project ON kpi_project.name = kpi_agg_project.child_project_name
WHERE kpi_metric.aggregated = false
GROUP BY kpi_measure.branch, kpi_metric.id, kpi_project.id, kpi_project.name, kpi_frequency_id;