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Use template string for dateBinsQueryTpl and dateHistogramQueryTpl

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This commit is contained in:
Daniel García Aubert 2017-09-06 11:41:24 +02:00
parent 0ede3013db
commit 4f75f6c07b
1 changed files with 54 additions and 51 deletions
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105
lib/cartodb/models/dataview/histogram.js
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@ -230,58 +230,61 @@ const dateOverrideBasicsQueryTpl = ctx => `
)
`;
var dateBinsQueryTpl = dot.template([
'__cdb_bins AS (',
' SELECT',
' __cdb_bins_array,',
' ARRAY_LENGTH(__cdb_bins_array, 1) AS __cdb_bins_number',
' FROM (',
' SELECT',
' ARRAY(',
' SELECT GENERATE_SERIES(',
' __cdb_start_date::timestamptz,',
' __cdb_end_date::timestamptz,',
' {{?it._aggregation==="quarter"}}\'3 month\'{{??}}\'1 {{=it._aggregation}}\'{{?}}::interval',
' )',
' ) AS __cdb_bins_array',
' FROM __cdb_basics',
' ) __cdb_bins_array_query',
')'
].join('\n'));
const dateBinsQueryTpl = ctx => `
__cdb_bins AS (
SELECT
__cdb_bins_array,
ARRAY_LENGTH(__cdb_bins_array, 1) AS __cdb_bins_number
FROM (
SELECT
ARRAY(
SELECT GENERATE_SERIES(
__cdb_start_date::timestamptz,
__cdb_end_date::timestamptz,
${ctx._aggregation === 'quarter' ? `'3 month'::interval` : `'1 ${ctx._aggregation}'::interval`}
)
) AS __cdb_bins_array
FROM __cdb_basics
) __cdb_bins_array_query
)
`;
var dateHistogramQueryTpl = dot.template([
'SELECT',
' (__cdb_max_val - __cdb_min_val) / cast(__cdb_bins_number as float) AS bin_width,',
' __cdb_bins_number AS bins_number,',
' __cdb_nulls_count AS nulls_count,',
' CASE WHEN __cdb_min_val = __cdb_max_val',
' THEN 0',
' ELSE GREATEST(1, LEAST(',
' WIDTH_BUCKET(',
' {{=it._column}}::timestamp AT TIME ZONE \'{{=it._offset}}\',',
' __cdb_bins_array',
' ),',
' __cdb_bins_number',
' )) - 1',
' END AS bin,',
' min(',
' date_part(',
' \'epoch\', ',
' date_trunc(',
' \'{{=it._aggregation}}\', {{=it._column}}::timestamp AT TIME ZONE \'{{=it._offset}}\'',
' ) AT TIME ZONE \'{{=it._offset}}\'',
' )',
' )::numeric AS timestamp,',
' date_part(\'epoch\', __cdb_start_date)::numeric AS timestamp_start,',
' min(date_part(\'epoch\', {{=it._column}}))::numeric AS min,',
' max(date_part(\'epoch\', {{=it._column}}))::numeric AS max,',
' avg(date_part(\'epoch\', {{=it._column}}))::numeric AS avg,',
' count(*) AS freq',
'FROM ({{=it._query}}) __cdb_histogram, __cdb_basics, __cdb_bins, __cdb_nulls',
'WHERE date_part(\'epoch\', {{=it._column}}) IS NOT NULL',
'GROUP BY bin, bins_number, bin_width, nulls_count, timestamp_start',
'ORDER BY bin'
].join('\n'));
const dateHistogramQueryTpl = ctx => `
SELECT
(__cdb_max_val - __cdb_min_val) / cast(__cdb_bins_number as float) AS bin_width,
__cdb_bins_number AS bins_number,
__cdb_nulls_count AS nulls_count,
CASE WHEN __cdb_min_val = __cdb_max_val
THEN 0
ELSE GREATEST(
1,
LEAST(
WIDTH_BUCKET(
${ctx._column}::timestamp AT TIME ZONE '${ctx._offset}',
__cdb_bins_array
),
__cdb_bins_number
)
) - 1
END AS bin,
min(
date_part(
'epoch',
date_trunc(
'${ctx._aggregation}', ${ctx._column}::timestamp AT TIME ZONE '${ctx._offset}'
) AT TIME ZONE '${ctx._offset}'
)
)::numeric AS timestamp,
date_part('epoch', __cdb_start_date)::numeric AS timestamp_start,
min(date_part('epoch', ${ctx._column}))::numeric AS min,
max(date_part('epoch', ${ctx._column}))::numeric AS max,
avg(date_part('epoch', ${ctx._column}))::numeric AS avg,
count(*) AS freq
FROM (${ctx._query}) __cdb_histogram, __cdb_basics, __cdb_bins, __cdb_nulls
WHERE date_part('epoch', ${ctx._column}) IS NOT NULL
GROUP BY bin, bins_number, bin_width, nulls_count, timestamp_start
ORDER BY bin
`;
var TYPE = 'histogram';