From 02564efc8a0d86dbbdf71965e024ddeb1c6fbb2b Mon Sep 17 00:00:00 2001 From: Maxence Dolle Date: Thu, 3 Aug 2017 16:06:35 +0200 Subject: [PATCH] Improve performance on dataframe to line conversion --- influxdb/_dataframe_client.py | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/influxdb/_dataframe_client.py b/influxdb/_dataframe_client.py index ac110a4a..b753bb33 100644 --- a/influxdb/_dataframe_client.py +++ b/influxdb/_dataframe_client.py @@ -302,17 +302,10 @@ def _convert_dataframe_to_lines(self, tag_df = self._stringify_dataframe( tag_df, numeric_precision, datatype='tag') - # prepend tag keys - tag_df = tag_df.apply( - lambda s: s.apply( - lambda v, l: l + '=' + v if v else None, l=s.name)) - - # join tags, but leave out None values + # join preprendded tags, leaving None values out tags = tag_df.apply( - lambda r: ','.join(r.dropna()), axis=1) - - # prepend comma - tags = tags.apply(lambda v: ',' + v if v else '') + lambda s: [',' + s.name + '=' + v if v else '' for v in s]) + tags = tags.sum(axis=1) del tag_df else: pFad - Phonifier reborn

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