6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
# File 'lib/partition_gardener/layout/zone_segments.rb', line 6
def build_filler_and_hot_segments(table_name:, buckets:, hot_buckets:, active_start:, active_end:, hot_bucket_name:, bucket_end:)
hot_bucket_set = hot_buckets.to_set
segments = []
middle_filler_index = 0
index = 0
while index < buckets.length
bucket = buckets[index]
if hot_bucket_set.include?(bucket)
segments << Plan::Segment.new(
name: hot_bucket_name.call(bucket),
range_start: bucket,
range_end: bucket_end.call(bucket),
kind: :hot_bucket
)
index += 1
next
end
run_start = bucket
while index < buckets.length && !hot_bucket_set.include?(buckets[index])
index += 1
end
run_end = (index < buckets.length) ? buckets[index] : active_end
segment_name = if run_start == active_start
Naming.current_partition_name(table_name)
else
middle_filler_index += 1
if middle_filler_index == 1
Naming.open_partition_name(table_name)
else
"#{table_name}_open_#{middle_filler_index}"
end
end
segments << Plan::Segment.new(
name: segment_name,
range_start: run_start,
range_end: run_end,
kind: :filler
)
end
segments << Plan::Segment.new(
name: Naming.future_partition_name(table_name),
range_start: active_end,
range_end: :max,
kind: :future
)
segments
end
|